The perimeter of a rectangle is 12 cm and its length is 2 cm more than the breadth.
What is the length of each side?
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Answer:
Take the breadth as x, so the length is x + 12
So x(x+12) = 448
x^2 + 12x = 448
So x^2 + 12x - 448 = 0
(x−16)(x+28)=0
So x = 16cm
The length is 16cm, breadth is 28cm
The perimeter is 2*16 + 2*28
= 32 + 56
= 88cm
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