Math, asked by apraipur84, 7 months ago

find the perimeter of a protractor having diameter 10 cm .

Answers

Answered by devika2121

9

perimeter of semicircle = 2πr/2

here diameter = 10 cm

therefore radius = 10 /2 = 5 cm

perimeter = 2 × 22/7 × 5 / 2

perimeter = 22/7 × 5 = 15.7142857143

= 15.71 approx.

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