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HELPP!!!

Two similar cones have matching heights and radii whose lengths are in the ratio 7:1 Find the ratio of their surface areas.

1 Answer

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In general, if corresponding lengths of two similar figures are in the ratio
a:b, then their areas are in the ratio
a^2:b^2. Thus, our answer is
7^2:1^2=\boxed{49:1}.

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