The area of sector of a circle whose radius is 12 metro and whose angle at the center is 42° is? Choose the most appropriate option.
A) 52.5 B) 52.9 C) 52.8 D) 52.1 E) 52.2
42/360 * 22/7 * 12 * 12= 
<gadget id="calculator">42/360 * 22/7 * 12 * 12</gadget>
<output>264/5 = around 52.8</output>
52.8 m2   Answer: 52.8
<result>C</result>
The area of sector of a circle whose radius is 12 metro and whose angle at the center is 42° is?