The radius of a semi circle is 6.8 cm then its perimeter is?	Choose the correct choice from the following options.
A) 32.7 B) 32.4 C) 22.4 D) 34.9 E) 35.1
36/7 r = 6.8 = 34.9   Answer:34.9
<result>D</result>
The radius of a semi circle is 6.8 cm then its perimeter is?