Multiple Choice Questions on Two equal circles of radius 3 cm each and distance between their centres is 10 cm The length of one ........... for SSC CGL Exam Preparation

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Multiple Choice Questions

Two equal circles of radius 3 cm each and distance between their centres is 10 cm The length of one ...........

Quantitative Aptitude (CGL) Coordinate Geometry
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    Two equal circles of radius 3 cm each and distance between their centres is 10 cm. The length of one of their transverse common tangent is

    7

    Incorrect Answer

    9

    Incorrect Answer

    10

    Incorrect Answer

    8

    Correct Answer
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    Explanation:

    DE2=GF2=d2-(first radius + second radius)2;
    DE=GF=√102-62=8 cms

    By: MIRZA SADDAM HUSSAIN
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