# math vocabulary Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

a point on a line segment that divides it into two equal parts midpoint
a line or ray that divides an angle into two congruent angles angle bisector
a drawing instrument used for drawing circles and arcs compass
a tool used to measure angles protractor
angles that have the same measure in degrees congruent angles
line segments that are equal in length congruent segments
states that if T is the interior point of <ABC then m<ABT + m<TBC= m<ABC angle addition postulate
states that if point B is between point A and C then AB + BC = AC segment addition postulate
a part of a line that connects two points line segment
the amount of turn between two lines around their common point (vertex) angle
an angle which is equal to 90 degrees right angle
an angle that is greater than 90 degrees and less than 180 degrees obtuse angle
an angle less than 90 degrees (smaller than a right angle) acute angle
an angle of 180 degrees straight angle

## Geometry Vocabulary Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

## Geometry Terms Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

## Basic Geometric Terms Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

An angle that measrues 180 degrees. straight
A line that goes up and down vertical
A straight path that has a beginning but not ending. ray
A math tool used for measuring or drawing angles. protractor
The middle point. midpoint
Two rays that have a common end point angle
An angle that measures more than 180 degrees but less than 360. reflex
Two lines that form right angles where they intersect. perpendicular
A straigh path that has a beginning and an ending. segment
An angle that measures more than zero degrees but less than 90. acute
where lines cross over a common point. intersection
Two angles that are next to each other. adjacent
A line that goes from side-to-side. horizontal
Something that has an end. finite
Angles that are opposite each other when two lines intersect. vertical
Two angles whose sum is 180 degrees. supplementary
Two angles whose sum is 90 degrees. complementary
Two lines that never cross or touch. parallel
Never ending. infinite
An angle that measures more than 90 degrees but less than 180. obtuse
As traigh path that goes on infinitely in either direction. line
A point where two angles begin or meet. vertex
When a figure is folded in half and the two halves match perfectly. symmetry
An angle that is 1/4 of a circle. right
A unit used to measure an angle. degree

## Points, Lines, Planes, and Angles Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

a _____ is simply a location point
a ______ is a flat surface made up of points plane
points on the same line are _____ collinear
points on the same plane are ______ coplanar
a _____ has two end points line segment
when segmants have the same measure they are ______ congruent
Point M is ______ points P and Q if and only if P, Q, and M are collinear and PM + MQ = PQ between
the _____ of a segment is the point halfway beween the endpoints of a segment midpoint
any segment, line, or plane that intersects at its midpoint is called a ________ segment bisector
distance around a circle into 360 parts is a ______ degree
a _____ is part of a line ray
a ray that divides an angle into two congruent angles is an ______ angle bisector
an angle with less than a 90 degree angle acute
an angle with a 90 degree angle right
an angle with more than a 90 degree angle obtuse
two angles that lie in the same plane, have a common vertex & side, but no common interior points adjacent angles
two nonadjacent angles formed by two intersecting lines vertical angles
pair of adjacent angles whose noncommon sides are opposite rays linear pair
two angles whose measures have a sum of 90 complementary angles
two angles whose measurements have a sum of 180 supplementary angles

## Geometry Crossword Puzzle

Type
Crossword
Description

This crossword contains the following questions and answers:

A line that intersects 2 or more coplanar lines. Transversal
Angles on the same side of the transversal that lie in the same exact spot. Corresponding Angles
The starting and stopping points of a line segment. Endpoints
Two angles that form a line. Linear Pair
Two angles that add up to 180 degrees. Supplementary
Two angles that add up to 90 degrees. Complementary
An angle that measures exactly 90 degrees. Right Angle
An angle that measures greater than 90 degrees and less than 180 degrees. Obtuse Angle
An angle that measures less than 90 degrees. Acute Angle
The point 2 or more figures have in common. Intersection
The point in the exact middle of a line segment. Midpoint
Angles with the same measure. Congruent Angles
Divide into 2 equal pieces. Bisect
On the same line. Collinear
On the same plane. Coplanar
Non-coplanar lines that do not intersect. Skew
Lines that intersect to make a 90 degree angle. Perpendicular Lines
Coplanar lines that never intersect. Parallel Lines
Angles on the same side of the transversal and on the interior of the lines. Consecutive Interior
Angles on opposite sides of the transversal and on the outside of the lines. Alternate Exterior
Angles on opposite sides of the transversal and on the inside of the lines. Alternate Interior
Angles on the same side of the transversal that lie in the same exact spot. Corresponding
A line that intersects 2 or more coplanar lines. Transversal

## Definitions- Chapter 1 & 2 Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

An angle whose measure is less than 90 degrees. Acute
An angle whose measure is 90 degrees. Right
An angle whose measure is greater than 90 degrees but less than 180 degrees. Obtuse
An angle whose measure is 180 degrees. Straight
Coplanar angles that have a common side, common vertex, and no common interior points. Adjacent
A line, ray or segment that cuts an angle into two equal angles. Angle Bisector
Points that lie on the same line. Collinear
Points that lie in the same plane. Coplanar
Two angles whose sum is equal to 90 degrees. Complementary
Angles that have equal measure. Congruent Angles
Segments that have equal lengths. Congruent Segments
A drawing that shows a corner view of a 3-D figure that allows you to see the top, front and side of an object in the same drawing. Isometric
A pair of adjacent angles whose non-common sides form a line. Linear Pair
A point on a line segment that divides the segment in to equal lengths. Midpoint
A ________________ bisector is a line ray or segment that is perpendicular to the segment at its midpoint. Perpendicular
Lines that intersect and form right angles. Perpendicular Lines
A statement in geometry that is accepted as fact without proof. Postulate
Part of a line that consists of one endpoint and all points of the line on one side of the endpoint. Ray
Two rays that share the same endpoint and form a line. Opposite Rays
Part of a line that contains two endpoints and all points between them. Segment
A line, ray or segment that which cuts another line segment into equal parts. Segment Bisector
Two angles whose sum is equal to a straight angle or 180 degrees. Supplementary
A pair of angles whose sides form two pairs of opposite rays. Vertical Angles
A statement that is written in if-then form. Conditional
The part of a conditional statement that follows the if. Hypothesis
The part of a conditional statement that follows the then. Conclusion
A statement in geometry that is accepted as fact only after it has been proven. Theorem
____________ reasoning is a process of reasoning logically from given facts to reach a conclusion. Deductive
______________reasoning is a type of reasoning that reaches a conclusion based on a pattern of specific examples or past events to reach a conclusion. Inductive

## Trigonometry Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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
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 Terminology Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A precise location or place on a line or plane Point
An object that is straight, infinitely long and infinitely thin. Line
A flat surface that is infinitely large Plane
A portion of a line which starts at a point and goes off in a particular direction to infinity Ray
A portion of a line Line Segment
Never touching Parallel
Lines that are not coplanar Skew
Two angles in corresponding positions relative to two lines Corresponding
Lines that cross Interesting
Points all in one plane Coplanar
Points all on one line Collinear
Not all on the same line Non- Collinear
Not all on the same plane non-coplanar
A line meeting at a right angle Perpendicular
A figure formed by two rays that have the same endpoint angle
Equal measures Congruent
Divides the angle into two congruent angles Bisector
Less than 90 degrees Acute
Larger than 90 degrees, less than 180 Obtuse
90 degrees Right
Two angles whose sides form two pairs of opposite rays Vertical
Two angles in a plane that have a common vertex and side, but no common interior points Adjacent
Two angles whose measures have the sum of 90 Complementary
Two angles whose measures have the sum of 180 Supplementary

## Lines & Angles Vocabulary Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Part of a line that has one end point and extends indefinitely in one direction. Ray
A pair of non-adjacent angles formed when two lines intersect. Vertical
Two angles which share a common side and vertex but have no common interior points (they do not overlap). Adjacent
A point that divides a segment into two congruent segments. Midpoint
An angle whose measure is 90 degrees. Right
Part of a line with two endpoints. Line Segment
Two angles with measures that have a sum of 180 degrees. Supplementary
An angle whose measure is 180 degrees. Straight
A pair of adjacent angles with non-common sides that are opposite rays. Linear Pair
A point, line, ray, or segment that divides a segment or angle into two congruent pieces. Bisector
Two angles with measures that have a sum of 90 degrees. Complementary
An angle whose measure is less than 90 degrees Acute
An angle whose measure is greater than 90. Obtuse

## Geometry Crossword!

Type
Crossword
Description

This crossword contains the following questions and answers:

A line,ray,segment or plane that intersects the segment at a midpoint. This divides the line, ray, segment or plane into two equal parts. Segment Bisector
A ray that divides an angle into 2 congruent adjacent angles. This consists of all points that are equidistant from the sides of the angle. Angle bisector
Two angles that add up to equal 180 are considered this. The measure of the first angle plus the measure of the second angle must equal 180 degrees total. supplementary angles
Two angles whose sum is 90 degrees are this. The measure of the first angle plus the measure of the second angle must equal 90 degrees. complementary angles
Coplanar lines that do not intersect. The two lines in the plane will never meet or touch each other. Parallel lines
A line that intersects two or more coplanar lines at distinct points. This can be used to determine whether or not two lines are parallel. transversal
The equation used in terms of slope that states "m"=the slope which is multiplied by x. "B" is the y-intercept. y=mx+b slope intercept form
Three sides of a triangle are congruent to 3 sides of a second triangle. What postulate will be used to prove the 2 triangles congruent? SSS
If two sides and the included angle of a triangle are congruent to 2 sides and the included angle of a second triangle Then the triangles are congruent according to what postulate? SAS
If two angles and the included side of one triangle are congruent to two angles and the included side of a second triangle then the triangles are congruent. According to what postulate? ASA
If two angles and the non-included side of one triangle are congruent to two angles and the non-included side of a second triangle then the triangles are congruent. According to what theorem? AAS
This term is used to prove corresponding segments or angles of congruent triangles congruent. What is the abbreviation? CPCTC
Two angles whose sides are formed by two pairs of opposite rays. The angles are congruent and placed "across" from each other. Vertical Angles
The point where sides meet. Often found on 3-dimensional figures including cones and pyramids. Vertex
The length of an arc of a circle is the product of the ratio and the circumference of the circle. Measure of arc AB= (measure of arc AB/360)(2πr). Arc Length
A comparison of two quantities by division. Such as, 5 to 7, 5:7, and 5/7. Ratio
A quadrilateral that has all the characteristics except for 2. The 2 characteristics this quadrilateral does not have is base angles congruent and has only one pair of opposite sides parallel. square
A line that is contained within two points called "endpoints." This line includes the two endpoints and several different points within the line. Segment
A perpendicular segment that joins the vertex of a triangle with the opposite side of the triangle.This is often substituted as "x" to find the geometric mean of the triangle. Altitude
Arcs that have the same measurement and are within the same circle or congruent circles. These arcs are the same in size and length. Congruent Arcs