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    Question

    If the length of one side of a rhombus is 16cm then find

    its surface area. (use тИЪ 3 = 1.732) Type-SSC
    A 447.3 cm Correct Answer Incorrect Answer
    B 443.3 cm┬▓ Correct Answer Incorrect Answer
    C 548.6 cm┬▓ Correct Answer Incorrect Answer
    D 445.9 cm┬▓ Correct Answer Incorrect Answer

    Solution

    Area of the triangle which is an equilateral triangle тАУ Base = 16cm, height = (тИЪ3/2) ├Ч16 = 8тИЪ3 Area of triangle = (1/2) ├Чb ├Ч h = ┬╜ ├Ч16├Ч8тИЪ3 = 64тИЪ3 Surface Area of rhombus = 4 ├Ч 64тИЪ3 ┬а=4├Ч64├Ч1.732=┬а =443.392 cm┬▓ ┬а Second method тАУ ┬а area of rhombus = тИЪ 3 ├Чa ├Ч a=┬а┬а тИЪ 3├Ч256=443.392 cm┬▓

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