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12-11-2014
Mathematics

Answered

a cylinder has a radius of 3 cm and length of 10cm every dimension of the cylinder. is multiplied by 3 to form a new cylinder. how is the ratio of the volumes related to the ratio of the corresponding dimension

Verified Answer :

12-11-2014

\(V_1=\pi radius_1^2length_1\\\\ radius_1=3cm\\length_1=10cm\\\\ V_1=\pi3^2*10=90\pi cm^3\\\\ V_2=\pi\ (3radius_1)^2*3length_1\\ V_2=\pi 9^2*30=2430\pi\ cm^3\\\\ Ratio=\frac{V_1}{V_2}=\frac{90}{2430}=\frac{1}{27}\\\\Ratio:\ 1:27.\)

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