# Geometry Vocabulary Crossword

Type
Crossword
Description

The point at which the three medians intersect. The center of mass of a figure of uniform.
The study of geometric figures in two dimensions (plane geometry) and three dimensions (solid geometry). It includes the study of points, lines, triangles, quadrilaterals, other polygons, circles, spheres, prisms, pyramids, cones, cylinders, and polyhedra.
A solid with parallel congruent bases which are both polygons. The bases must be oriented identically. The lateral faces of a prism are all parallelograms or rectangles.
A closed plane figure for which all sides are line segments. The name of a polygon describes the number of sides. A polygon which has all sides mutually congruent and all angles mutually congruent is called a regular polygon.
A quadrilateral which has a pair of opposite sides which are parallel. The parallel sides are called the bases, and the other two sides are called the legs.
The circumcenter of a triangle is the point where the three perpendicular bisectors meet. This point is the same distance from each of the three vertices of the triangles.
The concluding statement. Statement made using inductive reasoning.
Opposite of the truth value. Shown by symbol ~, "not p".
Written as p ^ q. Statements joined by "and".
Statements joined by "or". Written as p v q.
negating the hypothesis/ conclusion. Written as ~p->~p
Switching the hypothesis/ conclusion. Written as q->p.
Negating and switching the hypothesis. Written as ~q->~p.
Created by three special points and lines. Named after Swiss mathematician Leonard Euler.
A concave polygon is any polygon with an angle measuring more than 180°. Look like they are collapsed or have one or more angles dented in.
A combination of two transformations. A reflection over a line followed by a translation in the same direction as the line.
Has only one dimension. It continues forever in two directions.
The portion of a line lying strictly between two points. It has a finite length and no width.
Everywhere equidistant. Two lines in the same plane that never intersect.
A closed three-dimensional figure. All of the faces are made up of polygons.
If you have a right triangle, then the square built on the hypotenuse is equal to the sum of the squares built on the other two sides. a2 + b2 = c2.

## IED Unit 5 key terms Crossword

Type
Crossword
Description

A triangle that contains only angles that are less than 90 degrees.
The amount of rotation needed to bring one line or plane into coincidence with another, generally measured in radians or degrees.
The number of square units required to cover a surface.
1. An imaginary line through a body, about which it rotates.
A 3D point defining the geometric center of a solid.
A round plane figure whose boundary consists of points equidistant from the center
1. A triangle located round a polygon such as a circle.
A solid composed of two congruent circles in parallel planes, their interiors, and all the line segments parallel to the axis with endpoints on the two circles.
The measure of mass density is a measure of mass per volume.
A straight line passing from side to side through the center of a circle or sphere.
A shape generated by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant and equal to the major axis
A curve formed at the interior intersection between two or more surfaces.
To draw a figure within another so that their boundaries touch but do not intersect.
The amount of matter in an object or the quantity of the inertia of the object.
A triangle with one angle that is greater than 90 degrees.
A four-sided polygon with both pairs of opposite sides parallel.
The numerical value of the ratio of the circumference of a circle to its diameter
Any plane figure bounded by straight lines.
A solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.
A four-sided polygon.
A straight line from the center to the circumference of a circle or sphere.
A parallelogram with 90 degree angles. A square is also a rectangle.
A triangle that has a 90 degree angle.
A regular polygon with four equal sides and four 90 degree angles.
The squared dimensions of the exterior surface
A straight or curved line that intersects a circle or arc at one point only.
A polygon with three sides.
The amount of three-dimensional space occupied by an object or enclosed within a container.
A four-sided polygon.

## geometry Crossword

Type
Crossword
Description

a plane figure with ten straight sides and angles.
a part of a figure cut off by a line or plane intersecting it, in particular.
both parts have the same truth value
statements that are assumed to be true without proof
line that cuts across two or more (usually parallel) lines. ... It cuts across the parallel lines PQ and RS. If it crosses the parallel lines at right angles
add up to 180
When three or more points lie on a straight line.
one shape becomes exactly like another if you flip, slide or turn it.
A 4-sided flat shape with straight sides where: • all sides have equal length, and • every interior angle is a right angle (90°)
A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint.
an if-then statement in which p is a hypothesis and q is a conclusion.
t angles are two angles that have a common vertex and a common side
A 3-sided polygon
line that extends from one vertex of a triangle perpendicular to the opposite side.
A 9-sided polygon
Switching the hypothesis and conclusion of a conditional statement.
A point where two or more straight lines meet
add up to 90
A set of points, lines, line segments, rays or any other geometrical shapes that lie on the same plane
A circular movement
A 4-sided flat shape with straight sides where all interior angles are right angles (90°).
s straight (no curves), • has no thickness, and • extends in both directions without end infinitely
circumference.
"then" part of a conditional statement.
any 2-dimensional shape formed with straight lines.
7-sided polygon or 7-gon.
longest side
prove the boundaries of possible theorems.
Sliding
The length of the opposite side divided by the length of the adjacent side.
A shape, formed by two lines or rays diverging from a common point
four sides all have the same length.
statement formed by interchanging
A triangle with all sides of different lengths.

## A Crossword Puzzle of the Language of Geometry

Type
Crossword
Description

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

## Geometry Terms Crossword

Type
Crossword
Description

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

## Perimeter and Area Crossword

Type
Crossword
Description

Ice cream
The sum of the areas of the faces
A three-dimensional figure with all point the same
A polydendron with polygon base and triangular sides
The set of all point in a plane that are the smae distance from a given point
The distance around a circle
A three-dimensional figure with two parallel, congruent circular bases connected by a curved lateral surface
A line segment that passes throgh the center of a circle
A polyhedrom that has two congruent, polygon-shaped bases and other faces that are all parallelograms
The distance around a polygon

## Geometry Vocabulary Crossword

Type
Crossword
Description

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

## Trigonometry Crossword

Type
Crossword
Description

Always opposite of the right angle of the right triangle
Will always makeup part of the angle that is being discussed and not be the hypotenuse
Will never form part of the angle being discussed
Opposite/Hypotenuse
Adjacent/Hypotenuse
Opposite/Adjacent
A triangle with a right angle
A special right triangle with two congruent angle
Two sides with with equal lengths
Special right triangle that uses the ratio 1:Radical of 3:2
a^2+b^2=c^2
Angle that is always 90 degrees
A plane figure with three straight sides and three angles
Branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant function of any angles
Identical in form, size and angles
Inverse of sin
Inverse of Cosine
Inverse of Tangent
The angle sum of a triangle
Is used to show which lines are parallel
If all sides are the same on both of the triangle then they are congruent
If two sides and the angle between them are the same then they are congruent
Another word for height
In a triangle it is the line segment drawn from a vertex to the midpoint
If two angles are the same for two triangle then they are the same

## MATH CROSSWORD PUZZLE - Answer Key

Type
Crossword
Description

The mathematical sentence that uses an equal sign to show that two expressions are equal.
The line intersects 2 or more parallel line
The side of the right triangle that is opposite to the right angle.
The symbol that is used to represent a square root
The numerical factor of the term that contains a variable
A function whose graph is non vertical line
The ratio of change in y to the change in x (rise/run)
A polygon with three sides
Changes the figure into another shape
Identical in form (angles)
When two parallel lines are cut by a transversal, the angles formed on the outside of the parallel lines
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
Lines in the same plane that do not intersect
A transformation in which a figure slides but does not turn
The set of all points in the space that are the same distance from the point called center
A transformation in which a figure is made larger or smaller with respect to a fixed point
A measure of the amount of space a 3 dimensional figure occupies
A number that, when multiplied by itself, equals a given number
Two numbers whose product is 1
A polyhedron that has 2 parallel, congruent bases; the lateral faces are parallelogram

## 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.
Space occupied by a solid; measured in cubic inches.
3-D figure with faces(sides) that are polygons. A solid figure with many plane faces, typically more than six.
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.
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.
Applying more than one transformation to an image. A transformation is put on the previous image several times.
Shapes that have the same shape but different sizes,~. Having corresponding sides proportional and corresponding angles equal.
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.
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.
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.
Objects made up of more than one solid. A solid that is composed, or made up of, two or more solids.
Longest side of a right triangle; always across or opposite from right angle.
Reversing the Pathagorean Theorem; Switching the hypotenuse and conclusion of a conditional statement.
Has three angles and three sides; has a sum of 180 degrees.
Simply closed figure with three or more sides.
Angles of a triangle that are not adjacent to a given exterior angle.
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.
Fixed point or point that doesn't change in a rotation.
Intersecting line making a right angle. Two lines that meet a pet a right angle.
Outside the parallel's but opposite of the transversal; congruent.

## Geometry Chapter 2 Vocab Crossword

Type
Crossword
Description

An 'if p, then q' statement
The 'Then' or 'q' part of a conditional statement
An 'if p, then q' statement with p as the hypothesis and q as the conclusion
A statement that we think is true
What comes out of exchanging AND negating the hypothesis and conclusion of a conditional
What comes out of exchanging the hypothesis and the conclusion of a conditional
Something that proves a statement/conjecture false
Using logic to draw conclusions
It describes an object in math and can be written as a biconditional statement
A proof that uses boxes and arrows to show the reasoning
The 'If' or 'p' part of a conditional statement
Hypothesizing that something is true because certain cases are true
What comes out of negating the hypothesis and conclusion of a conditional
Statements with the same truth value
'Not p', '~p'
A proof where the reasoning is written in a paragraph, like an english paper
A closed figure in a plane with at least three sides and three angles
A polygon with four sides
A proven statement
A polygon with three sides
A statement's truth value is either T or F
A proof where the statements are in the right column and the reasons are in the left.
Using logic to prove that statements are true, using statements and reasons