If the perimeter of a semicircular protractor is 66 cm, find the diameter of the protractor (Take π = 22/7).

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asked Feb 7, 2018 in Mathematics by Kundan kumar (49,132 points) 34 435 1352

If the perimeter of a semicircular protractor is 66 cm, find the diameter of the protractor (Take π = 22/7).

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answered Feb 7, 2018 by Vikash Kumar (144,729 points) 8 11 26
 
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Let the radius of the protractor be r cm. Then,

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