if the diameter of the semicircular protractor is 14 cm then the perimeter of protector is
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Diameter of the protractor = 14cm
Radius = 14/2 = 7 cm
Perimeter of protractor = Half of the perimeter of circle + Diameter of circle
= 2πr/2 + D
= πr + D
= 22/7 × 7 + 14
= 22 + 14
= 36cm
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