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Discussion :: Mensuration

  1. The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?
    2. A.
    25 cm2
    B.
    42 cm2
    C.
    49 cm2
    D.
    70 cm2
    E.
    None of these

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    Answer : Option E

    Explanation :

    Area of a triangle = r * s

    Where r is the inradius and s is the semi perimeter of the triangle.

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