Find the perimeter of a rectangle whose area is 500 cm2 and breadth is 20 cm.
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Solution
Area = 500 cm2
Breadth = 20 cm
Area of rectangle = Length Breadth
Therefore
Length = = = 25 cm
Perimeter of a rectangle = 2 (Length + Breadth)
= 2 (25 + 20) cm = 2 45 cm = 90 cm