Question

the measure of two adjacent sides of a rectangle is in the ratio 11 is to 10 if the perimeter of the rectangle is 84 CM then find its length and breadth

Answer 1

let the side be 11 x and 10 x
p=2(l+b)
84=2(11x+10x)
84/2=21x
42=21x
x=42/21=2
l=11*2=22
b=10*2=20