Multiple Choice Questions on Two circles touch each other externally The distance between their centre is 7 cm If the radius of o........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two circles touch each other externally The distance between their centre is 7 cm If the radius of o...........

Quantitative Aptitude ( CCS) Geometry
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    Two circles touch each other externally. The distance between their centre is 7 cm. If the radius of one circle is 4 cm, then the radius of the other circle is

    3.5 cm

    Incorrect Answer

    3 cm

    Correct Answer

    4 cm

    Incorrect Answer

    2 cm

    Incorrect Answer
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    Explanation:


    OO' = 7 cm
    r1 + r2 = 7
    4 + r2 = 7
    r2 = 7 – 4 = 3 cm

    By: MIRZA SADDAM HUSSAIN
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