Question 529802
5/12 = x/(2x+8)



5(2x+8) = 12x



10x+40=12x



10x=12x-40



10x-12x=-40



-2x=-40



x=(-40)/(-2)



x=20


So the shorter side is 20 cm and the longer side is 2*20 + 8 = 48 cm