Question
The perimeter of a rectangle is 80 cm. The side of a
square is equal to the average of the length and breadth of the rectangle. Find the area of the square.Solution
ATQ, Perimeter of the rectangle = 2 × (l + b) The sum of the length and breadth = 80 / 2 = 40 cm The side of the square = 40 / 2 = 20 cm Area of the square = a² The area of the square = 20 × 20 = 400 cm²
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