circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?
Choose the correct answer:
A) 44
B) 55
C) 66
D) 78
E) 49
π (152 - 132) = 176   176 * 1/4 = Rs.44.44nswer: 44
<result>A</result>
circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?