The area of sector of a circle whose radius is 15 metro and whose angle at the center is 42Â° is?  Select.
A) 52.6	B) 52.9	C) 52.8	D) 52.1	E) 82.5
42/360 * 22/7 * 15 * 15= 
<gadget id="calculator">42/360 * 22/7 * 15 * 15</gadget>
<output>165/2 = around 82.5</output>
82.5 m2   Answer: 82.5
<result>E</result>
The area of sector of a circle whose radius is 15 metro and whose angle at the center is 42Â° is?