Question

The ratio of the sides of two similar octagons is 2:5. What is the ratio of the perimeters of these octagons?

Answer 1

So we see the ratio of the sides of two similar octagons is 2:5 so let's say the first octagon has a side of 2 and the other has a side of 5. 2*8 = 16 and 5*8 = 40. 16:40 = 4:10 = and is again 2:5. So the answer is 2:5.