Question

the sides of a triangle are in the ratio 3:4:5 what is the length of each side if the perimeter of the triangle is 90cm

Answer 1

3:4:5.....added = 12

3/12 * 90 = 270/12 = 22.5
4/12 * 90 = 360/12 = 30
5/12 * 90 = 450/12 = 37.5