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Discussion :: Area

  1. The length of a rectangle is thrice its breath, and its perimeter is 106 meters. What is its area?

    2. A.
    507 sq. m.
    B.
    508 sq. m.
    C.
    509 sq. m.
    D.
    510 sq. m.

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    Answer : Option A

    Explanation :

    Let the breath = x

    So, the Length = 3x

    Perimeter of a rectangle = 2 (Length + Breadth)
                                          So, 2 (3x + x) = 106
                                          6x + 2x = 106
                                          8x = 106
                                          x = 104/8 = 13

    Now, Breadth = 13, so, length = 13 * 3 = 39

    So, its area = Length * Breadth
                         = 39 * 13 = 507 sq. m.

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