Question

the length of a rectangular field is 8 metres less than twice its breadth if the perimeter of the rectangular field is 56 metres find its length and breadth

Answer 1

let the breadth be x
length=2x-8
perimeter=56

perimeter of a rectangle=2 (l+b)
56=2 (2x-8+x)
56/2=(3x-8)
28=3x-8
28+8=3x
36=3x
36/3=x

12=x

breadth=x=12 meter
length=2x- 8
=2×12-8
=24-8
=16meter

Answer 2

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