Geometry Terms

Front

center

Back

the point from which all points on a circle are the same distance

Front

circle

Back

the set of all points on a plane that are the same distance from a point called the center

Front

circumference

Back

the distance around a circle

Front

composite figure

Back

a figure that is made up of two or more figures

Front

diameter

Back

the distance across a circle through its center

Front

pi

Back

the ratio of the circumference of a circle to its diameter. Approx. 3.14

Front

prism

Back

a polyhedron with two parallel congruent faces called bases.

Front

radius

Back

the distance from the center of a circle to any point on the circle

Front

semicircle

Back

half a circle

Front

surface area

Back

the sum of the areas of all the surfaces (faces) of a three-dimensional figures