A circular ground whose radius is 15 metres, has a 1.2 metre-broad garden around it. What is the area of the garden in square metres?	Choose the correct choice from the following answers:	A) 118.67	B) 116.67	C) 117.67	D) 120.56	E) 120.57
Req. area = Ï€[(16.2)2 â€“ (15)2]   = 22â„7 Ã— (31.2 Ã— 1.2)[since a2 - b2 = (a + b)(a - b)]   = (22 Ã— 31.2 Ã— 1.2)/7 = 117.67sq m   Answer 117.67
<result>C</result>
A circular ground whose radius is 15 metres, has a 1.2 metre-broad garden around it. What is the area of the garden in square metres?