Find the area of circle whose radius is 21m? Choose the correct choice from the following answers:
A) 2884  B) 1544  C) 7674  D) 1684  E) 1386
22/7 * 21 * 21= 
<gadget id="calculator">22/7 * 21 * 21</gadget>
<output>1_386</output>
1386   Answer: 1386
<result>E</result>
Find the area of circle whose radius is 21m?