The circumference of a circular park is 264 metres. A 3.5 metres wide road runs on the outside around it. Find the cost of constructing the road at ₹ 200 par square metre.
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264=44/7*r
264*7/44=r
6*7=r
42cm=r
radius =42+3.5=45.5cm
Area =22/7*(r2)
Area =22/7*(45.5*45.5)
Area =22/7*2070.25
Area=22*295.75
Area =6506.5cm2
cost of construction =6506.5*200
cost of construction =1301300