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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 392 cm.sq Correct Answer Incorrect Answer
    B 648 cm.sq Correct Answer Incorrect Answer
    C 192 cm.sq. Correct Answer Incorrect Answer
    D 288 cm.sq Correct Answer Incorrect Answer

    Solution

    a² = 441 cm. sq. a = 21 cm According to question, => 4 × 21 = 2 (2b + b) => 42 = 3b => b = 14 cm So, l = 14 x 2 = 28 cm Area of rectangle = (14 × 28) = 392 cm. sq.

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