SOLUTION: Find the radius of a cone with the volume of 175 cm cubed and a height of 21 cm

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Question 1075473: Find the radius of a cone with the volume of 175 cm cubed and a height of 21 cm

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find the radius of a cone with the volume of 175 cm cubed and a height of 21 cm
:
The cone volume formula: V = 1%2F3pi%2Ar%5E2%2Ah
In this problem:
V = 175
h = 21
1%2F3pi%2Ar%5E2%2A21 = 175
Cancel 3 into the 21
pi%2Ar%5E2%2A7 = 175
r%5E2 = 175%2F%287%2Api%29
r%5E2 = 7.957747
r = sqrt%287.957747%29
r = 2.821 cm is the radius
:
:
Check this using your calc
V = 1%2F3pi%2A2.821%5E2%2A21