Geometry Vocabulary Surface Area

Front

What is the bottom line of a shape called?

Back

Base

Front

What is the area formula for a trapezoid?

Back

h(B1 + B2)/2

Front

What is the area formula for a triangle?

Back

bh/2

Front

Finding the area of a composite figure by breaking it into parts is called what?

Back

Decomposing

Front

What is the area formula for a parallelogram?

Back

bh

Front

What is the area formula for a rectangle?

Back

lw

Front

What is the term for the distance around a shape?

Back

Perimeter

Front

What is the area formula for a circle?

Back

πr²

Front

What do you call a three-dimensional shape with a circular base?

Back

Cylinder

Front

What is the term for a flat surface that extends infinitely in all directions?

Back

Plane