find the cost of fencing around a circular field of diameter 12 m at the rate of rs. 3.50 a meter?  Pick one
A) 131.95
B) 132.9
C) 140.33
D) 123.4
E) 190.4
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">2 * pi * 6</gadget>
<output>12*pi = around 37.699112</output>

<gadget id="calculator">(12*pi) * 3.5</gadget>
<output>42.0*pi = around 131.946891</output>

<result>A</result>
find the cost of fencing around a circular field of diameter 12 m at the rate of rs. 3.50 a meter?
multiply(circumface(divide(12, const_2)), 3.50)
"2 * 22 / 7 * 6 = 37.7 37.7 * 3 1 / 2 = rs . 131.95 answer : a"