How can I solve this math problem

Mathematics
Tutor: None Selected Time limit: 1 Day

Suppose that the height of a cylinder is 30cm and its volume is 750π cm2.  Find its radius.

Oct 3rd, 2015

Hi there! Thank you for the opportunity to help you with your question!

For this problem, you have that the volume of a cylinder is 750π. Given that the formula for the volume of a cylinder is:

V = πr^2h

Then we plug in the facts that we know V = 750π, and h = 30:


750π = π r^2 (30)

Dividing both sides by 30π :

25 = r^2

Taking the square root of both sides:

5 = r

So the radius of the cylinder is 5 

Please let me know if you need any clarification. Always glad to help!
Oct 3rd, 2015

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