Question

The areas of two similar triangles ABC and DEF are 2500 sq. cm?
and 1600 sq. cm respectively. Then the ratio of the perimeter of
∆ABC to the perimeter of ∆ DEF is :
(A) 16:25 (B) 25:16 (C)5:4 (D)4:5

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Answer 1

Step-by-step explanation:

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Answer 2

Ratio of areas =144:81

∴ ratio of sides =12:1

Let the longest side be x. Then

36:x=12:9 or x=1236×9=27cm