Answer:
V = 17663 in^3
76 gallons
Step-by-step explanation:
This figure is 1/2 of a cylinder
We can find the volume of a cylinder and take 1/2
V = pi r^2 h
The diameter is 30 so the radius is 1/2 d = 1/2(30) = 15
and the height is 50
V = pi * (15)^2 (50)
V =11250 pi
V= 11250 (3.14)
V =35325 in^3
We need to take 1/2 of this volume since this is 1/2 of the cylinder
1/2 V = 1/2(35325) =17662.5 in ^3
To the nearest cubic inch
V = 17663 in^3
B. We need to convert cubic inches to gallons
1 gallon = 231 in^3
17663 in^3 * 1 gallon/ 231 in^3 = 17663/231 gallons =76.46103896 gallons
To the nearest gallon
76 gallons
