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The diameter of semi-circular protracter is 7cm. Find its perimeter and area ​

Answer»

Perimeter = 18cm Area = 11/4cm²Step-by-step EXPLANATION:Given, Diameter (d) = 7cmRadius(R) = d/2 = 7/2Area = So, 1/2*22/7*(7/2)²= 11/7*7/4= 77/28= 11/4cm²Perimeter = = 22/7*7/2 + 7= 11+7 = 18cmHope it helps! :)Someone CORRECT me if I'm wrong



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