How do you find the perimeter of a semicircle?

Please help me with this! It would be very much appreciated. smiley

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1 Answer

??????????????????? "perimeter" ??????????? yu must meen rim-leng

semiserkel...strate line kross the wide, + leng av half a serkel

wide=wide

half semi-serkel=(pi/2)*wide

pi/2=1.5707963267948965
by

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