The radius of a semicircle is 7. What is the approximate perimeter of the semicircle?
Options:
A) 36	B) 25	C) 15	D) 28	E) 37
perimeter of a circle =2pi*r   perimeter of a semicircle = pi*r + 2r   aprox perimiter = 3.14*7 + 2*7= 
<gadget id="calculator">3.14*7 + 2*7</gadget>
<output>35.98</output>
35.98 approximately 36   answer 36
<result>A</result>
The radius of a semicircle is 7. What is the approximate perimeter of the semicircle?