The radius of a semi circle is 6.3 cm then its perimeter is?	Choose the correct choice.
A) 32.8 B) 32.4 C) 32.1 D) 32.2 E) 32.9
36/7 r = 6.3   = 32.4   Answer:32.4
<result>B</result>
The radius of a semi circle is 6.3 cm then its perimeter is?