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  1. The base of a right-angled triangle is 10 and hypotenuse is 20. What is its area?

    2. A.
    52 meters
    B.
    58 meters
    C.
    68 meters
    D.
    60 meters

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    Answer : Option D

    Explanation :

    The area of a right angled triangle = ½ * base * height

    Base = 10, Hypotenuse = 20
    Height2 = Hypotenuse2 - Base2
                       = 202 - 162
                       = 400 - 256
          Height2 = 144
          Height = 12

    Area = ½ * base * height

                   = ½ * 10 * 12
                   = 60 meters

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