Asked by brianna
2 cylinders are proportional. The smaller cylinder has a radius of 4 cm. which is half as large as the radius of the larger cylinder.The volume of the smaller cylinder is 250 cubic cm. What is the approximate volume of the larger cylinder?
Answers
Answered by
Damon
volume proportional to scale ratio cubed
250 * 8 = 2000
note, I did not have to work that out but here is why
vol = pi r^2 h
if R = 2 r
and H = 2 h
vol big = pi R^2 H = pi (2r)^2 (2 h) = 8 pi r^2 h
250 * 8 = 2000
note, I did not have to work that out but here is why
vol = pi r^2 h
if R = 2 r
and H = 2 h
vol big = pi R^2 H = pi (2r)^2 (2 h) = 8 pi r^2 h
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