Question

A cone-shaped chemical tank is 12 feet high and has a diameter of 45 feet. The tank is half full. How

many cubic feet of liquid is in the tank?

Answer 1

V= 3180.87

Explanation:

to know radius=

radius*2= diameter

reverse it to find radius

45 feet= radius*2

45 ÷2= radius = 22.5

`V= \pi r^2(h)/(3)` equation to find volume of a cone

`V=\pi 22.5^2(12)/(3)` 12 is from height

V≈ 6361.72512

Rounded V= 6361.73

Tank is half full so divide by 2

6361.73 ÷ 2= 3180.865

Rounded: V= 3180.87