Multiple Choice Questions on The area of right angle triangle is 100sq cm The ratio of base to its height is 4 5 Find the length ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The area of right angle triangle is 100sq cm The ratio of base to its height is 4 5 Find the length ...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    The area of right angle triangle is 100sq cm. The ratio of base to its height is 4:5.Find the length of the hypotenuse ?

    20cm

    Correct Answer

    22cm

    Incorrect Answer

    28cm

    Incorrect Answer

    30cm

    Incorrect Answer
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    Explanation:

    Area = ½(4x*5x)
    100 = 20x^2/2
    X^2 = 100/10 =10
    x = 3.16
    4x:5x = 12.64:15.8
    Hypotenuse = √12.642+15.82
    = √409.40
    = 20.23 = 20 cm

    By: Amit Kumar
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