A semicircular shaped window has diameter of 63cm. Its perimeter equals	Pick.
A) 162  B) 766  C) 298  D) 277  E) 198
Explanation:   perimeter of window = {\color{Blue} \Pi }r+2r   = [{(22/7) * (63/2)} +63]   = 99+63= 
<gadget id="calculator">99+63</gadget>
<output>162</output>
162 cm   162nswer: 162) 162
<result>A</result>
A semicircular shaped window has diameter of 63cm. Its perimeter equals