Question

A children's wading pool is in the shape of a right circular cylinder, and has a diameter of 6 feet. The pool is filled to a uniform depth of 1.5 feet.

Which of the following values is closest to the volume of
water in the pool, in cubic feet?
A. 28
B. 42
C. 57
D. 67
E. 133

Answer 1

B) 42

Explanation:

The area of a cylinder is pi*r^2*h where r is the radius and h is the height. Plugging in 3 for the radius(radius=diameter/2) and 1.5 for height you get area=pi*9*1.5. Assuming pi as 3.14 you get 3.14*9*1.5 which is 42.39 which is approx. 42.

Answer 2

Answer:B 42

Explanation:

V=pi/4 x D^2 x H

3.14/4 x 36 x 1.5 = 42 ft^3