8th Grade STAAR Math Vocabulary

Front

Area of the base

Back

The surface area of the bottom face of a 3D object.

Front

Circumference

Back

The distance around the edge of a circle.

Front

Diameter

Back

A straight line passing from side to side through the center of a circle.

Front

Formula for cone volume

Back

(1/3)πr²h, where r is the radius and h is the height.

Front

Formula for pyramid volume

Back

(1/3)Base Area × Height.

Front

Formula for cylinder volume

Back

πr²h, where r is the radius and h is the height.

Front

Formula for prism volume

Back

Base Area × Height.

Front

Formula for sphere volume

Back

(4/3)πr³, where r is the radius.

Front

Height

Back

The measurement from base to top.

Front

Lateral surface area

Back

The sum of the areas of all the faces of a 3D object excluding the base and top.