Question

Calculate the volume of a cone with the radius 5 and height of 8. Round your answer to the nearest whole number

A. 170
B.209
C.335
D.1005

Answer 1

Answer 209

Explanation: formula of a cone= 1/3h x pi x r^2

Height=8
Radius= 5

8pi x 5^2= 8pi x 25= 628 (nearest whole number)
628/3= 209

Another way:
Height: 8
Radius:3

8/3=2.67
2.67 x pi x5^2
= 209
Actual answer= 209.4395102 but nearest whole number = 209