Geometry Module 2 Vocabulary

Front

A closed plane figure with at least three straight sides.

Back

Polygon

Front

All angles of the polygon are congruent.

Back

Equiangular

Front

A closed three-dimensional figure made up of flat polygonal regions.

Back

Polyhedron

Front

The number of square units needed to cover a surface.

Back

Area

Front

All the sides of a polygon are congruent.

Back

Equilateral

Front

A polygon with all interior angles measuring less than 180°.

Back

Convex

Front

A convex polygon that is both equilateral and equiangular.

Back

Regular Polygon

Front

The sum of the lengths of the sides of the polygon.

Back

Perimeter

Front

The distance around a circle.

Back

Circumference

Front

A polygon with one or more interior angles with measures greater than 180°.

Back

Concave