A semicircle has a radius of 14. What is the approximate perimeter of the semicircle?
Choose the correct choice from the following answers
A) 72  B) 76  C) 80  D) 84  E) 88
The perimeter of a circle is 2*pi*r.   The perimeter of a semicircle is 2*pi*r/2 + 2r = pi*r + 2r   The perimeter is pi*14 + 2*14 which is about 72.   The answer is 72.
<result>A</result>
A semicircle has a radius of 14. What is the approximate perimeter of the semicircle?