- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Matching Worksheet

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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

- Type
- Crossword Puzzle

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