Multiple Choice Questions on If the area of a Delta ABC is equal to area of square of sde length 6 cm then what is the length of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

If the area of a Delta ABC is equal to area of square of sde length 6 cm then what is the length of ...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    If the area of a ΔABC is equal to area of square of sde length 6 cm, then what is the length of the altitude to AB, where AB = 9 cm ?

    18 cm

    Incorrect Answer

    14 cm

    Incorrect Answer

    12 cm

    Incorrect Answer

    8 cm

    Correct Answer
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    Explanation:

    Given, AB = 9 cm
    Let the length of altitude to AB = l cm
    By given condition,
    Area of ΔABC = Area of square
    ⇒ 1/2 × Base × Altitude = (Side length)2
    ⇒ 1/2  × 9 × l = 36
    ⇒ l = 36 × 2/9 = 8 cm

    By: Amit Kumar
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