The radius of a semicircular plot is 25. What is the approximate perimeter of the plot?
Select:	A) 114	B) 150	C) 129	D) 25	E) 57
perimeter of a circle =2pi*r   perimeter of a semicircle = pi*r + 2r   aprox perimiter = 3.14*25 + 2*25= 
<gadget id="calculator">3.14*25 + 2*25</gadget>
<output>128.5</output>
128.50 approximately 129   answer 129
<result>C</result>
The radius of a semicircular plot is 25. What is the approximate perimeter of the plot?