Length of a rectangle exceeds its breadth by 4 m. If the perimeter of the rectangle is 84
find its length and breadth
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Take the breadth as x, so length becomes x + 4.
Perimeter of a rectangle = 2 ( L + B )
84 = 2 ( x + x + 4 )
42 = 2x + 4
38 = 2x
x = 19
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