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    Question

    The area of a rhombus is 168 cm2. The length

    of one of its diagonals is 28 cm. The length of the other diagonal is:
    A 16cm Correct Answer Incorrect Answer
    B 14cm Correct Answer Incorrect Answer
    C 10cm Correct Answer Incorrect Answer
    D 12cm Correct Answer Incorrect Answer
    E 17cm Correct Answer Incorrect Answer

    Solution

    Using formula, Area of rhombus = 1/2 x product of diagonals Let the d1, d2 be the diagonals of a rhombus. ⇒ 168 = 1/2 x 28 x d2 ⇒ d2 = 168/14 = 12 cm

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