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Surface Area of Cone

The radius of...

Question

The radius of a certain cone is 4 times the radius of a similar cone. The ratio of their altitudes is

A

1 : 4

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B

16 : 1

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C

1: 16

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D

1 : 64

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Solution

The correct option is A
1 : 4

In similar solids, all corresponding linear dimensions are in the same ratio. Since the ratio of the radii is 1 : 4, the ratio of the altitude is 1 : 4.

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