Multiple Choice Questions on A chord 12 cm long is drawn in a circle of diameter 20 cm The distance of the chord from the centre ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A chord 12 cm long is drawn in a circle of diameter 20 cm The distance of the chord from the centre ...........

Quantitative Aptitude ( CCS) Geometry
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    A chord 12 cm long is drawn in a circle of diameter 20 cm. The distance of the chord from the centre is

    8 cm

    Correct Answer

    6 cm

    Incorrect Answer
    10 cm
    Incorrect Answer

    16 cm

    Incorrect Answer
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    Explanation:

    Diameter, AB = 20 cm
    ∴  Radius, AO = OC = 10 cm
    Chord, CD = 12 cm
    ∴  CE = ED = 6 cm
    In ΔCOE, By pythagoras theorem
    OE = √OC2 – CE2 = √102 – 62 = 8 cm

    By: Amit Kumar
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