Question

calculate the area (A) of the base of the cone. then, calculate the volume (V) of the cone. if necessary, round answer to the nearest hundredth.

Answer 1

Using 3.14 for pi

V = 66.99 cm^3

Using the pi button

V = 67.02 cm^3

Explanation:

The area of the base of the cone is the area of a circle

A = pi r^2

A = pi * 4^2 = 16 pi

The volume of a cone is given by

V = 1/3 Bh where B is the area of the base and h is the height

V = 1/3 (16 pi) * 4

V =64/3 pi cm^3

Using 3.14 for pi

V =66.9866666

Rounding to the nearest hundredth

V = 66.99 cm^3

Using the pi button

V =67.02064328

Rounding to the nearest hundredth

V = 67.02 cm^3