SOLUTION: A cylinder with radius 9 feet and height 9 feet has its radius tripled. How many times greater is the volume of the larger cylinder than the smaller cylinder?

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Question 941345: A cylinder with radius 9 feet and height 9 feet has its radius tripled. How many times greater is the volume of the larger cylinder than the smaller cylinder?
Answer by srinivas.g(540) About Me  (Show Source):
You can put this solution on YOUR website!
radius (r) = 9 feet
height (h) = 9 feet
Formula : Volume (V)= +Pi%2Ar%5E2%2Ah
V = pi%2A9%5E2%2A9
V =+pi%2A729
V= 729%2Api
now radius becomes triple
hence r2 = 3*9 = 27
new volume = +Pi%2Ar2%5E2%2Ah
= +pi%2A27%5E2%2A9
=pi%2A729%2A9
but initial volume = +729%2Api
= initial volume x 9
Result : larger cylinder volume = 9 times the smaller cylinder volume