Asked by Kilani

The area ratio between 2 similar triangles is 225/81. Find the perimeter ratio of these triangles.

a) 3/2
b) 225/81
c) 15/9
Answered by Scott
the square root of the area ratio
Answered by Kilani
how do I find the square root of the area ratio?
Answered by Reiny
The areas of two similar figures are proportional to the square of their corresponding sides

so 225 : 81 = side1^2 : side2^2
then √225 : √81 = side1 : side2
side1 : side2 = 15 : 8
Answered by Kilani
you mean 15 : 9?
Answered by Reiny
yes, of course, hit the wrong key
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