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If the perimeter of a semi circular protractor is 108 cm than find its diameter |
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Answer» HEYA !! PERIMETER of semi CIRCULAR protestor = 108 ( πR + 2R ) = 108 R ( π + 2 ) = 108 R ( 22/7 + 2 ) = 108 R ( 22 + 14 ) = 108 × 7 R ( 36 ) = 756 R = 756/36 R = 21 cm. Hence, RADIUS ( R ) = 21 cm. |
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