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The perimeter of a semicircle protractor …

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The perimeter of a semicircle protractor is 36cm.find it's diameter

    • Posted by Siva Ranjini 6 years, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Yogita Ingle 6 years, 2 months ago

    Perimeter of semicircle= πr + 2r
    perimeter is 36cm
    36 = 22/7r + 2r
    36 = 22r + 14r/7
    36 = 36r/7
    r = 36 × 7/36
    r = 7
    Diameter = 2 × 7
    = 14

    1Thank You

    Aadya Singh ? 6 years, 2 months ago

    Diameter = 14 cm..

    1Thank You

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