Question

find the length and breadth of the rectangle given below if it's perimeter is 72​

Answer 1

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Length=5x+4

Breadth=x-4

Given Perimeter=72

Perimeter=2×(l+b)

72=2×(5x+4)+(x-4)

72=10x+8+2x-8

72=12x

$\sf \frac{72}{12} = x = 6$

So x=6

Length=5x+4=5×6+4=34

Breadth=x-4=6-4=2

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Answer 2

Step-by-step explanation:

perimeter = 2(l+b)

72 =2(5x+4+x-4)

72 = 2×6x

72 =12x

x =72/12

x. = 6

length x-4 =6-4=2

breath 5x+4=5×6+4=34

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