# Geometry Vocabulary Crossword

Type
Crossword
Description

Two lines that intersect in a plane and form right angles. Perpendicular lines
Two lines that are in the same plane and do not intersect. Parallel Ines
A line that intersects two or more lines. Transversal
The four inside angles formed by two lines cut by a transversal. Interior Angles
The four outer angles formed by two lines cut by a transversal. Exterior angles
Interior angles that lie on opposite sides of the transversal. Alternate Interior
Exterior angles that lie on the opposite sides of the transversal. Alternate exterior
Having the same measure. Congruent
Angles that are in the same position on two parallel lines in relation to the transversal. Corresponding angles
Two angles that form a line supplementary
Two angles that form a right angle. Complementary

## Parallel Lines Cut by a Transversal Crossword

Type
Crossword
Description

The angles that occupy the same relative position at each intersection where a straight line crosses two others. Corresponding Angles
The pairs of angles on opposite sides of the transversal, but inside the parallel lines. Alternate Interior Angles
The pairs of angles on opposite sides of the transversal, but outside the parallel lines. Alternate Exterior Angles
Two angles that are on the same side of the transversal and on the inside of the parallel lines. Same Side Interior Angles
Two angles that are on the same side of the transversal and on the outside of the parallel lines. Same Side Exterior Angles
Corresponding angles have this relationship. Congruent
Same Side Interior angles have this relationship Supplementary
Angles that are smaller than 90 degrees Acute
Angles that are larger than 90 degrees. Obtuse
Angles that share a vertex and are congruent. Vertical Angles
Angles with a sum of 90 degrees Complementary Angles

## angle relationships Crossword

Type
Crossword
Description

two angles are complementary if the sum of their measures is 90 degrees complementary
opposite angles formed by the intersection of two lines vertical
An angle who's measure is less than 90 degrees acute
Angles that share a common vertex, a common side, and do not overlap adjacent angles
Exterior angles that lie on opposite sides of the transversal. alternate exterior
Interior angles that lie on opposite sides of the transversal. alternate interior
Angles that are in the same position on two parallel lines in relation to a transversal. corresponding
the four outer angles formeed by two lines cut by a transversal Exterior
an angle inside a polygon interior
an angle whose measure is between 90 and 180 degrees obtuse
interior angles that lie on opposite sides of the transversal alternate interior

## Geometry Crossword Puzzle

Type
Crossword
Description

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

## Different Types Of Angles Crossword

Type
Crossword
Description

Two angles whose measure have a sum of 180° Supplementary
Two angles whose measure have a sum of 90° Complementary
Same side angles; are supplementary Consective
Two angles formed by two intersecting lines Vertical
Two angles that lie between parallel lines on opposite sides of the transversal Alternate interior
Angles that lie outside the parallel lines on opposite side of the transveral Alternate Exterior
Angles have same position relative to the transversal Corresponding
Two angles that are side by side Adjacent angles
Lines that never intersect Parallel Lines
Line, ray, or segment that intersect two or more coplanar lines, rays, or segments Transversal

## MATH VOCAB MATCHING! ch 10 Worksheet

Type
Matching Worksheet
Description

lines going in the same direction parallel lines
line that intersects two parallel lines transversal
lie inside the parallel lines interior angles
lie outside the parallel lines exterior angles
on opposite sides of transversal alternate interior angles
on opposite sides of transversal alternate exterior sides
in the same position on the parallel lines corresponding angles
when two lines intersect vertical angles
two angles have same vertex, share common side, don't overlap adjacent angles
sum of the measures of two angles is 90 complimentary angles
sum of the measures of two angles is 180 supplementary angles
lines that intersect to form a right angle perpendicular lines
a sequence of straight line segments forming a closed figure polygon
line segment in polygon that forms triangles diagonal
polygon that is equilateral regular polygon
set of all points in plane that are same distance from center circle
distance from center to any point on the circle radius
distance across the circle through the center diameter
distance around the circle circumference
figure that isn't classified as single polygon or circle composite figure

## MATH CROSSWORD PUZZLE - Answer Key

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 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

## 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

## Parallel Lines and Transversal Crossword

Type
Crossword
Description

A pair of congruent angles on opposite sides of the transversal and are outside the parallel lines. ALTERNATEEXTERIORANGLESS
A pair of congruent angles on opposite sides of the transversal and are inside the parallel lines. ALTERNATEINTERIORANGLE
Two angles whose sum is 90 degrees COMPLEMENTARY
If two angles have the same measurement, then the angles are __. CONGRUENT
Congruent angles that match up in location CORRESPONDINGANGLES
A pair of supplementary angles that form a straight line LINEARPAIR
Two lines that never intersect PARALLELLINES
A pair of supplementary angles on the same-side of the transversal and are outside the two parallel lines. SAMESIDEEXTERIORANGLES
A pair of supplementary angles on the same-side of the transversal and are inside the two parallel lines. SAMESIDEINTERIORANGLES
Two angles whose sum is 180 degrees SUPPLEMENTARY
A line that crosses two or more lines TRANSVERSAL
A pair of congruent angles that share a common vertex and are opposite of each other. VERTICALANGLES

## Angle Relationships Crossword

Type
Crossword
Description

Forms F Corresponding
Intersects two or more other lines in the same plane at the different points. Transversal
Angles add up to 90° Complementary
Forms "Z", "N" Alternate Interior
Two interior angles that lie on the side of a transversal Same Side Interior
Angles add up to 180° Supplementary
Two angles that share a common side and vertex. (No overlapping). Adjacent
Two exterior angles that lie on the same side of a transversal. Same Side Exterior
Two exterior angles that lie on the opposite side of a transversal. Alternate Exterior
Adj + Sup = 180° Linear Pair
Angles form ribbon, congruent to each other. Vertical
Two lines that are congruent. Parallel
Line is || if the ≅ angle is Corresponding
Line is || if the exterior angle is Sup. (term abbreviated) SSE
Line is || if the interior angle is Sup. (term abbreviated) SSI
Line is || if the angle forming a "Z" is ≅ Alt Int
Line is || if two angles that lie on the opposite side of a transversal are ≅ Alt Ext