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Finding the diameter of the cylinder

Mathematics
Tutor: None Selected Time limit: 0 Hours

Apr 12th, 2015

Let stat by writing an equation for the volume of a cylinder

V = pi *r^2 * h

Now you are given V and h

48 pi = 3pi* r^2

16 = r^2

r = 4 in

Here is where you need to be careful.  The question asks for the DIAMETER of the cylinder not the radius.

Remember that d = 2r

d = 2*4

d = 8 in

Solution : 2. 8 inches.

Apr 12th, 2015

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Apr 12th, 2015
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