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Question

Two isosceles triangles have their corresponding angles equal and their areas are in the ratio 25:36. Find the ratio of their corresponding heights.

A
25:35
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B
36:25
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C
5:6
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D
6:5
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Solution

The correct option is C 5:6
We know, ratios of areas of similar triangles is equal to ratio of squares of their corresponding sides.
Hence,

Area of 1Area of 2=(height of 1)2(height of 2)2

Taking square root on both sides,

(height of 1)(height of 2)=Area of 1Area of 2

(height of 1)(height of 2)=2536=56

Option C


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