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    Question

    What will be inradius of a right angle triangle whose

    base is 15cm & height is 8cm ?
    A 3 cm Correct Answer Incorrect Answer
    B 1 cm Correct Answer Incorrect Answer
    C 2 cm Correct Answer Incorrect Answer
    D 6 cm Correct Answer Incorrect Answer

    Solution

    By pythogorus theorem, Hypotenuse 2  = Base 2 +Height 2 = 15 2 +8 2 = 225 + 64 = 289, So Hypotenuse = 17; Now inradius of a right angle triangle = (Base + Height - Hypotenuse)/2 = (8 + 15 - 17)/2 = 6/2 = 3cm

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