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CBSE Class 10 Answered

if the diameter of a semicircular protractor is 14cm then its perimeter?
Asked by shouvik dutta | 29 Dec, 2013, 09:14: PM
answered-by-expert Expert Answer
Diameter of semicircular protractor = 14 cm
Radius = 7 cm
Perimeter = 2∏r/2 + 2r = ∏r + 2r
= ∏ (7) + 2 (7)
= 22x 7/7 + 14
= 22 + 14
= 36 cm
Answered by | 29 Dec, 2013, 09:40: PM

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