Question

The areas of two similar octagons are 112 in.² and 63 in.². What is the ratio (larger to smaller) of their perimeters?
16/3
4/9
16/9
4/3

Answer 1

area is a squared unit (m^2), it's 2-dimensional
perimeter is just a plain unit(m), it's 1-dimensional

the 2-dimensional ratio is 112/63
Then, the 1-dimensional ratio is sqrt(112/63), which is 4/3

Answer 2

Thank you soo much!