The perimeter of a rectangle is 82cm and its area is 400 sq.cm. find out the breadth of the rectangle.
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Area of rectangle = l × b = 400
perimeter = 2( l + b ) = 82
l + b = 41
x² –41x + 400 = 0
x² – 25x – 16x + 400 = 0
x = 25,16
b = 25 cm or b = 16 cm
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