A circular ground whose diameter is 35 metres, has a 1.4 metre-broad garden around it. What is the area of the garden in square metres?	Choices
A) 160.16 B) 6.16 C) 122.66 D) Data inadequate E) None of these
Req. area = π[(17.5 + 1.4)2 – (17.5)2]   = 22⁄7 × (36.4 × 1.4)[since a2 - b2 = (a + b)(a - b)]   = 22 × 36.4 × 0.2 = 160.16 sq m   160.16nswer 160.16
<result>A</result>
A circular ground whose diameter is 35 metres, has a 1.4 metre-broad garden around it. What is the area of the garden in square metres?