The perimeter of a semi circle is 126 cm then the radius is?
Answers:	A) 22	B) 28	C) 98	D) 24.5	E) 13
36/7 r = 126   =&gt; r   = 24.5   Answer: 24.5
<result>D</result>
The perimeter of a semi circle is 126 cm then the radius is?