SOLUTION: A right circular cylinder with radius 5 and height 4 has volume v. In terms of v, what is the volume of a right circular cylinder with radius 5 and height 8? (A) v + 4 (B) 2v

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Question 92614: A right circular cylinder with radius 5 and height 4 has volume v. In terms of v, what is the volume of a right circular cylinder with radius 5 and height 8?
(A) v + 4
(B) 2v
(C) 4v
(D)6v
(E)8v
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the second cylinder has the same radius as the first (they are equally big "around")

the second one is twice as long ... if you cut it in half, it would make two of the first cylinder

so it must have twice the volume ... answer (B)