If the area of two similar decagons are 625 ft² squared and 100 ft² what is the ratio of the perimeters of the decagons

Answer 1

please I desperately need some help!!!!

Answer 2

625:100 = 25^2:10^2
so the perimeters are in the ratio 25:10 = 5/2

Answer 3

omg thanks so much @oobleck