Hxkix
Hxkix Hxkix
  • 03-05-2017
  • Mathematics
contestada

Find the perimeter of a semi circle with a radius of 47cm

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mashteyman
mashteyman mashteyman
  • 03-05-2017
To find the circumference of a circle the equation is 2*pi*r
pi=3.14 
and the radius which is given is 47 
So 3.14*2=6.28
6.28*47= 295.16 then divide that bu two because it's a semi circle is 147.58 cm.
Therefore the perimeter of a semicircle is 147.58 cm
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