Question
Perimeter of a square is equal to perimeter of a
rectangle, if area of square is 441 sq.cm and length of rectangle is two times that of breath. Find the area of rectangle.Solution
ATQ,
Square side = √441 = 21 cm Perimeter of square = 4 × 21 = 84 cm Rectangle: let breadth = b, length = 2b Perimeter = 6b = 84 → b = 14, l = 28 Area = 28 × 14 = 392 cm²Â
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