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If the diameter of a semicircular …

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If the diameter of a semicircular protector is 42 unit. Then find its perimeter

    • Posted by Juhi Kumari 6 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Divya Garg 6 years, 11 months ago

    Diameter is 42 units therefore r is 21 units Perimeter of semicircle=diameter+length of the arc =42+(22÷7×21) =42+66 =108cm

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