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

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