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      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.
      A 432 cm.sq Correct Answer Incorrect Answer
      B 256 cm.sq Correct Answer Incorrect Answer
      C 392 cm.sq. Correct Answer Incorrect Answer
      D 288 cm.sq Correct Answer Incorrect Answer
      E 200 cm.sq Correct Answer Incorrect Answer

      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 cm² 

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