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Question : Two isosceles triangles have equal vertical angles and their areas are in the ratio 9 :16. Then the ratio of their corresponding heights is:

Option 1: 4.5 : 8

Option 2: 4 : 3

Option 3: 8 : 4.5

Option 4: 3 : 4


Team Careers360 15th Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: 3 : 4


Solution : Given, that the Ratio of areas of two isosceles triangles is 9 : 16.
Two isosceles triangles have equal vertical angles.
By angle sum property and equal base angles of the isosceles triangle, the given triangles have angles of the same measure.
So, the triangles are similar to each other by AAA criterion.
Also, we know, the ratio of area of similar triangles is the square of the ratio of heights of similar triangles.
So, (ratio of heights) 2 = 9 : 16
⇒ (ratio of heights) = 3 : 4
Hence, the correct answer is 3 : 4.

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