Question

The measure of two adjacent side of a rectangle is in the ratio 11:10.
if the perimeter of the rectangle is 84 CM then find its length and breadth

Answer 1

l=11x
b=10x
perimetre=2(l+b)
84=2(11x+10x)
84=2(21x)
84÷2=21x
42=21x
42÷21=x
2cm=x
so,l=11x=11×2=22cm
b=10x=10×2=20cm

Answer 2

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