Type
Crossword
Description

The mathematical sentence that uses an equal sign to show that two expressions are equal. EQUATION
The line intersects 2 or more parallel line TRANSVERSAL
The side of the right triangle that is opposite to the right angle. HYPOTENUSE
The symbol that is used to represent a square root RADICAL SIGN
The numerical factor of the term that contains a variable COEFFICIENT
A function whose graph is non vertical line LINEAR FUNCTION
The ratio of change in y to the change in x (rise/run) SLOPE
A polygon with three sides TRIANGLE
Changes the figure into another shape TRANSFORMATION
Identical in form (angles) CONGRUENT
When two parallel lines are cut by a transversal, the angles formed on the outside of the parallel lines EXTERIOR ANGLES
In any right triangle, the sum of the squares of the lengths of legs is equal to the square of the length of the hypotenuse PYTHAGOREAN THEOREM
Lines in the same plane that do not intersect PARALLEL LINES
A transformation in which a figure slides but does not turn TRANSLATION
The set of all points in the space that are the same distance from the point called center SPHERE
A transformation in which a figure is made larger or smaller with respect to a fixed point DILATION
A measure of the amount of space a 3 dimensional figure occupies VOLUME
A number that, when multiplied by itself, equals a given number SQUARE ROOT
Two numbers whose product is 1 RECIPROCALS
A polyhedron that has 2 parallel, congruent bases; the lateral faces are parallelogram PRISM

Geometry Crossword Puzzle

Type
Crossword
Description

Polygons having the same shape. Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional. SIMILAR POLYGONS
Space occupied by a solid; measured in cubic inches. VOLUME
3-D figure with faces(sides) that are polygons. A solid figure with many plane faces, typically more than six. POLYHEDRON
Parts of congruent figures that match or are in the same places as each other. The parts (angles or sides) are in the same relative position in each of the figures. CORRESPONDING PARTS
Using properties of similar polygons to find lengths that are difficult to measure directly. A method of using proportions to find an unknown length or distance in similar figure. INDIRECT MEASUREMENT
Applying more than one transformation to an image. A transformation is put on the previous image several times. COMPOSITION OF TRANSFORMATIONS
Shapes that have the same shape but different sizes,~. Having corresponding sides proportional and corresponding angles equal. SIMILAR
A 3-D figure with all points the same distance from the center. A round solid figure, or its surface, with every point on its surface equidistant from its center. SPHERE
3-D figure with two parallel congruent circles. Connected by a curved circle. A solid geometric figure with straight parallel sides and a circular or oval cross section. CYLINDER
3-D figure with one circle base connected by a curved surface to a single vertex. A solid or hollow object that tapers from a circular or roughly circular base to a point. CONE
Objects made up of more than one solid. A solid that is composed, or made up of, two or more solids. COMPOSITE SOLIDS
Longest side of a right triangle; always across or opposite from right angle. HYPOTENUSE
Reversing the Pathagorean Theorem; Switching the hypotenuse and conclusion of a conditional statement. CONVERSE
Has three angles and three sides; has a sum of 180 degrees. TRIANGLE
Simply closed figure with three or more sides. POLYGON
Angles of a triangle that are not adjacent to a given exterior angle. REMOTE INTERIOR ANGLES
Operation that maps an original geometric figure to a now figure. A general term for four specific ways to change the shape on a graph. TRANSFORMATION
Fixed point or point that doesn't change in a rotation. POINT OF ROTATION
Intersecting line making a right angle. Two lines that meet a pet a right angle. PERPENDICULAR LINES
Outside the parallel's but opposite of the transversal; congruent. ALTERNATE EXTERIOR ANGLES

Geometry Vocabulary Crossword

Type
Crossword
Description

A closed plane figure formed by three or more straight sides that are line segments. polygon
A polygon with three sides and three angles. triangle
A polygon with four sides and four angles. quadrilateral
A polygon with five sides and five angles. pentagon
A polygon with six sides and six angles. hexagon
A polygon with seven sides and seven angles. heptagon
A polygon with eight sides and eight angles. octagon
A polygon with nine sides and nine angles. nonagon
A polygon with ten sides and ten angles. decagon
An angle that measures greater than 0 degrees and less than 90 degrees. acute
An angle that forms a square corner and has a measure of 90 degrees. right
An angle whose measure is 180 degrees. straight
An angle that measures greater than 90 degrees and less than 180 degrees. obtuse
An exact location in space. point
A straight path of points in a plane that continues without end in both direcetions with NO endpoints. line
A part of a line that includes two points called endpoints and all the points between them. line segment
A part of a line; it has one endpoint and continues without end in one direction. ray
The point at either end of a line segment of the starting point of a ray. endpoint
Lines in the same plane that never intersect and are always the same distance apart. parallel
Two lines that intersect to form four right angles. perpendicular
Lines that cross each other at exactly one point. intersecting
The number of square units needed to cover a surface. area
The distance around a figure. perimeter
A parallelogram with four equal, or congruent, sides and four right angles. square
A parallelogram with opposite sidees that are equal, or congrudent, and with four right angles. rectangle
A parallelogram with four equal, or congruent, sides. rhombus
A quadrilateral with exactly one pair of parallel sides. trapezoid
A quadrilateral whose opposite sides are parallel and equal, or congruent. parallelogram
Having the EXACT same size and shape. congruent

Trigonometry Crossword

Type
Crossword
Description

Always opposite of the right angle of the right triangle Hypotenuse
Will always makeup part of the angle that is being discussed and not be the hypotenuse Adjacent Side
Will never form part of the angle being discussed Opposite side
Opposite/Hypotenuse Sine
Adjacent/Hypotenuse Cosine
Opposite/Adjacent Tangent
A triangle with a right angle Right triangle
A special right triangle with two congruent angle 45-45-90 Triangle
Two sides with with equal lengths Isosceles Triangle
Special right triangle that uses the ratio 1:Radical of 3:2 30-60-90 Triangle
a^2+b^2=c^2 Pythagorean Therom
Angle that is always 90 degrees Right Angle
A plane figure with three straight sides and three angles Triangle
Branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant function of any angles Trigonometry
Identical in form, size and angles Congruent
Inverse of sin Sin^-1
Inverse of Cosine Cos^-1
Inverse of Tangent Tan^-1
The angle sum of a triangle 180 Degrees
Is used to show which lines are parallel \
If all sides are the same on both of the triangle then they are congruent SSS Postulate
If two sides and the angle between them are the same then they are congruent SAS Postulate
Another word for height Altitude
In a triangle it is the line segment drawn from a vertex to the midpoint Median
If two angles are the same for two triangle then they are the same AA Postulate

Geometry Terms Crossword

Type
Crossword
Description

branch of mathematics that deals with points, lines, planes, and solids and examines their properties geometry
has no size, length, width, or height. represented by a dot and named by a capital letter point
set of all points space
points that lie on the same line collinear points
points that lie on the same plane coplaner points
line that consists of two points and all points between them segment
the part of a line that contains an endpoint and all other points extending in the other direction ray
things measuring to the same size or length congruent
a point that divides a segment into two congruent parts midpoint
angle whose measure is between 0 and 90 degrees acute angle
an angle that measures 90 degrees right angle
an angle whose measure is greater than 90 but less than 180 degrees obtuse angle
an angle whose measure is 180 degrees straight angle
triangle with no sides congruent scalene
triangle that has a right angle included right triangle
two angles whose sum is 90 degrees complementary
two angles whose measures sum up to 180 degrees supplementary
line that intersects a circle in two points secant
segment that connects two ponts on a circle chord
comparison of two numbers by divison ratio
congruent polygons lying in parallel planes bases
equation that sates two ratios are equal proportion
parellelogram with consecutive sides congruent rhombus
four sided figure with all sides congruent square
a line segment with two points on a cirlce that passes through the center diameter

Geometry Vocabulary Crossword

Type
Crossword
Description

A pair of angles that share a common vertex and side. adjacent
points that lie on the same line collinear
A pair of adjacent angles that form a line. linear pair
to cut in half bisect
a geometric figure that has an endpoint and goes on infinitely in one direction. ray
A pair of angles that are formed with two straight lines. vertical
a pair of angles that add up to 90 complementary
a pair of angles that add up to 180 supplementary
a line that intersects two or more lines. transversal
if two lines are parallel, then alternate interior angles are ______________. congruent
Same side interior angles are supplementary if the lines are ______________ parallel
Lines that do not intersect and are noncoplanar. skew
a triangle with at least two sides congruent. isosceles
___________ parts of congruent triangles are congruent. corresponding
<A=<A reflexive
The __________ of a triangle is half the length of the base. midsegment
a parallelogram that has four right angles rectangle
a quadrilateral that has two pairs of consecutive sides congruent. kite
a square is both a rectangle and _____________ rhombus
a comparison of two things ratio
___________ figures have the same shape but not necessarily the same size. similar
the ratio of the corresponding side lengths of two similar figures. scale factor
The theorem that says the sum of the squares of the legs in a right triangle is equal to the square of the hypotenuse. pythagorean
The trig ratio that is "opposite leg over hypotenuse" sine
a transformation in which the preimage and image are congruent isometry
the distance around part of the circle arclength
an angle whose measure is half the intercepted arc inscribed
a line that touches a circle in exactly one point tangent
the volume of a __________ is 1/3 the volume of a prism pyramid

Geometry Crossword Puzzle

Type
Crossword
Description

a triangle that has all equal sides and anles is considered an __________ triangle. Name starts with an "e" equilateral
a triangle with no congruent sides. Name starts with an "s". scalene
In this triangle, it has 2 congruent sides. Name starts with an "i". isosceles
coplainar lines that do not intersect. Lines never end. parallel
when the y-axis and x-axis change by a ratio. Many graphs have this type of diagonal. slope
transformation that turns every point. makes a figure move 360 degrees among a point is called _________. Name starts with an "r". rotation
a transformation representing a flip.When a figure flips over the or x-axis it is called a _________. reflection
a transformation that slides a figure. This word starts with a "t" translation
this angle is more than 90 degrees. This angle starts with an "o". obtuse
in a polygon, a segment that connects nonconsecutive vertices of the polygon. Line is neither horizontal nor vertical. diagonal
a quadrilateral with parallel opposite sides. Any sides can be called a base. (square,rhombus,rectangle) parallelogram
a quadrilateral with 4 right angles. Considered a parallelogram. rectangle
a quadrilateral with 4 congruent sides. considered a parallelogram. rhombus
a quadrilateral with 4 right angles and 4 congruent sides, Considered a parallelogram. square
a quadrilateral with one pair of parallel sides. Two base angles. trapezoid
this angle is less than 90 degrees. Angle starts with an "a" acute
a transformation that enlarges or reduces the original figure. Gets smaller or bigger. dilation
a __________ angle forms a perfect 90 degrees. Angle name starts with a "r" right
common endpoints of a figure. The "points" vertex
all figures have one of theses. The ________ encloses a figure. Word starts with a "s" side

ANSWER KEY Crossword

Type
Crossword
Description

The maximum or minimum point of a quadratic function. vertex
The line of symmetry that runs through the vertex; can be found algebraically: x=-b/(2a) axis of symmetry
All the input values of a function. domain
All the output values of a function. range
x = -b ± √(b² - 4ac)/2a quadratic formula
one of the possible outcomes of a probability experiment event
a possible result of an experiment outcome
a diagram that shows how two or more sets in a universal set are related Ven diagram
a collection or list of items SET
events such that the outcome of one event does not affect the probability of the outcome of another event independent events
'sides and angles' that are images of each other will be equal if the two triangles are congruent. CORRESPONDING PARTS
Any number that can be written as a simple fraction, with a whole number numerator and denominator, such as terminating decimals, repeating decimals and integers. rational number
A square with a whole number root. perfect square
An angle of exactly 90 degrees. right angle
A triangle that contains a right angle. right triangle
Any number that cannot be written as a simple fraction, such as non-repeating, non-terminating decimals, square roots of non-perfect squares, pi. irrational number
The result of multiplying a number by itself square
Greek philosopher, 570-495 BC. There is no evidence that Pythagoras himself worked on or proved the Pythagorean Theorem, which was used previously by Babylonians and Indians. Pythagoras
A mathematical symbol that indicates the extraction of the root of the square inside. radical sign
the statement that the values of two mathematical expressions are equal equation
a numerical or constant quantity placed before and multiplying the variable in an algebraic expression Coefficient
solving a problem solutions
value that,when multiplied by itself,gives the number roots
relationship between two numbers indicating how many times the first number contains the second ratio
two ratios or fractions are equal proportion
relationship between two numbers indicating how many times the first number contains the second ratio
a single number or variable, or numbers and variables multiplied together terms
an unbroken part of a circle arc
an angle whose vertex is at the center of a circle central angle

A Crossword Puzzle of the Language of Geometry

Type
Crossword
Description

part of a line that is bounded by two distinct end points segment
2 angles that add up to 180 degrees supplementary
exactly similar parts facing each other or around an axis. symmetry
a figure with four equal straight sides and four right angles square
A line with a start point but no end point ray
having a common vertex and a common side adjacent
a figure with three straight sides and three angles triangle
a nine-sided figure nonagon
a transformation in which the figure is reflected across a line, creating a mirror image reflection
a quadrilateral with only one pair of parallel sides trapezoid
at an angle of 90° to a given line perpendicular
each angular point of a polygon vertex
2 angles that add up to 90 degrees complementary
a transformation in which the figure is turned around a fixed center point rotation
a figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square rectangle
A long thin mark made by a pen line
the continuous line forming the boundary of a closed figure perimeter
a figure with at least three straight sides and angles polygon
a seven-sided figure heptagon
the longest side of a right triangle hypotenuse
a transformation in which every point of the figure is moved in the same direction and for the same distance translation
the space between two intersecting lines or surfaces at or close to the point where they meet angle
a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides rhombus
a triangle that has three unequal sides scalene
a transformation in which the figure is enlarged or decreased in size dilation

Geometry Vocabulary Crossword Puzzle

Type
Crossword
Description

Line segments that do not intersect. They are side by side and have the same distance continuously between them. Parallel
A straight line going through the center of a circle. It connects two points on the circle's circumference. Diameter
An angle that is equal to 90 degrees. It is usually represented by a small square on the vertex of the angle. right
A flat surface that extends forever and does not end. It contains an x and y axis, and infinite points and lines. plane
A transformation that moves an image a certain distance. It slides an image within a plane without rotating or flipping it. translation
A triangle that has two sides of equal length. The angles opposite the equal sides are also equal. isosceles
A pair of adjacent angles formed by intersecting lines. Another word for supplementary angles, meaning that they add up to equal 180 degrees. linear pair
Two lines that intersect. The relationship between the two lines meet at a right angle. perpendicular
A 2-dimensional shape that has three sides and three angles. There are three types of a ________; Equilateral, Isosceles, and Scalene. triangle
Two angles that add up to equal 90 degrees. Two angles that add up to 180 degrees are supplementary, while two angles that add up to 90 degrees are _________. complementary
The perimeter or distance around the edge of a circle. The equation to find the __________ is πd or 2πr. circumference
A straight path that extends in two opposite directions without end, and has no thickness. A _________ can contain infinite points. line
A part of a line that consists of two endpoints. This forms when two points are connected. segment
A part of a line that consists of one endpoint. When naming a _________, the endpoint MUST com first. ray
A 3-dimensional point, line, or shape. It is a region in which objects exist. space
The distance from the center to the circumference of a circle. It is half of the circle's diameter. radius
A transformation that turns an image around a given point. It can be transformed by turning it clockwise or counterclockwise. rotation
Unit to measure angles. One __________ is the angle measurement of 1/360th of a circle. degrees
The common endpoint of two or more rays or line segments. It is the corner or point where lines meet. vertex
A trigonometric function used in a right angled triangle. It is the length of the adjacent side divided by the length of the hypotenuse. cosine

Geometry Terms Crossword Puzzle

Type
Crossword
Description

Line segment drawn from a vertex of the triangle perpendicular to the base of the triangle Altitude
Parallelogram where all sides have equal length Rhombus
Regular quadrilateral Square
Switching the hypothesis and conclusion of a conditional statement and negating both Contrapositive
Transformation that preserves side length and angle measurement Isometry
Parallelogram with a right angle Rectangle
Line segment that bisects a side of a triangle into 2 congruent segments Median
3 or more lines containing the same point Concurrent
Both pairs of opposite sides of a quadrilateral are parallel Parallelogram
Point of a line segment that divides the segment into 2 congruent segments Midpoint
Sides or segments have the exact same length Congruent
Transformation where the size is changed and figure is moved Dilation