Geometry Module 2 Vocabulary

Front

Closed figure with at least 3 sides.

Back

Polygon

Front

Adjacent angles formed by intersecting lines that are supplementary.

Back

Linear Pair

Front

Intersecting at right angles.

Back

Perpendicular

Front

Two angles with equal measure.

Back

Congruent Angles

Front

All angles of a polygon are congruent.

Back

Equiangular

Front

Two angles that sum to 180°.

Back

Supplementary Angles

Front

Intersection of two noncollinear rays at a common endpoint.

Back

Angle

Front

A ray or segment that divides an angle into two equal angles.

Back

Angle Bisector

Front

A closed 3D figure with flat polygonal regions.

Back

Polyhedron

Front

Units needed to cover a surface.

Back

Area