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dsp73
3 years ago
10

If two similar cones have volumes of 320cm^3 and 1,080cm^3, find the scale factor.

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0
The ratio of the volumes is equal to the scale factor cubed.

\frac{V_1}{V_2}=k^3 \\ \\
\frac{320 \ cm^3}{1080 \ cm^3}=k^3 \\
\frac{8}{27}=k^3 \\
k=\sqrt[3]{\frac{8}{27}} \\
\boxed{k=\frac{2}{3}} \Leftarrow \hbox{answer B}
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