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## Answers

Perimeter of circle =

Perimeter of semicircle =

= (22/7)*42(where pi = 22/7)

= 22*6

= 132cm

Perimeter of semicircle =

= (22/7)*42(where pi = 22/7)

= 22*6

= 132cm

Formulae for perimeter of semi circle =pi(42)+2(42)=42pi+44=42*22/7+44=216

216 is the answer.

216 is the answer.