The radius of a semi circle is 6.3 cm then its perimeter is?

3 Answers on this Question

1. perimeter of semi circle = (pi)r + 2r
   = (3.14)(6.3)+(12.6)
   = 32.382

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2. perimeter of semi circle = (pi)r
   = (3.14)(6.3)
   = 19.782 cm

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   1. perimeter = pi(r) + 2r
      = 19.782 + (12.6)
      = 32.382 cm

      Reply