Question

if the ratios of the areas of two similar triangle is 16:81,the ratio of their perimeter is​

Answer 1

Since the areas of the given two triangles are in the ratio 81:16, the ratio of their sides will be 9:4.

So the sides will be 9a, 9b, 9c and 4a, 4b, 4c.

Perimeter of the triangles will be in the ratio (9a + 9b + 9c) : (4a + 4b + 4c) = 9:4