SOLUTION: A company makes steel rods shaped like cylinders. Each rod has a radius of 3 centimeters and a height of 40 centimeters. How much steel will the company need to make 121 rods?

Algebra ->  Surface-area -> SOLUTION: A company makes steel rods shaped like cylinders. Each rod has a radius of 3 centimeters and a height of 40 centimeters. How much steel will the company need to make 121 rods?      Log On


   



Question 1059823: A company makes steel rods shaped like cylinders. Each rod has a radius of
3 centimeters and a height of 40
centimeters. How much steel will the company need to make
121 rods?Use
3.14 for π, and do not round your answer.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Find the volume of a rod.
V%5Br%5D=pi%2AR%5E2%2AL=pi%2A3%5E2%2A40=360pi
There are 121 of them so the total volume is the volume of a rod multiplied by 121,
V%5BT%5D=121%2A360pi
V%5BT%5D=43560picm%5E3