The radius of a semi circle is 2.1 cm then its perimeter is? Answers.
A) 32.5	B) 11.12	C) 32.1	D) 10.8	E) 32.3
36/7 r = 2.1 = 10.80   Answer:10.8
<result>D</result>
The radius of a semi circle is 2.1 cm then its perimeter is?