Calculate the circumference of a circular field whose radius is 4 centimeters.  Answers
A) 2  B) 4  C) 6  D) 8  E) 10
Circumference C is given by   C = 2Ï€r = 2Ï€*4 = 8 Ï€ cm   correct answer 82  *4= 
<gadget id="calculator">2  *4</gadget>
<output>8</output>
8 Ï€ cm   correct answer 8
<result>D</result>
Calculate the circumference of a circular field whose radius is 4 centimeters.