Question

Area of a rectangle is 51.2 dm 2 and the sides are in the ratio 5:4.Find perimeter.

Answer 1

l=5X
b=4x
area =5+4=9X
9X×2=18X
18X=51.2
X=2.844
l=5×2.844=14.22dm
b=4×2.844=11.376dm

plz mark as brailest pleaseeeeeeeeeeee ☺☺☺☺☺