The area of sector of a circle whose radius is 12 metre and whose angle at the center is 42° is?  Select the correct option:
A) 52.7 m 2	B) 57.8 m 2	C) 52.8 metre sq	D) 72.8 m 2	E) 52.8 m 2

Rationale: 42 / 360 * 22 / 7 * 12 * 12 = 52.8 m 2 answer : c
Answer: C