A road 3.5 m wide surrounds a circular plot whose circumference is 44 m. Find the cost of 22 repairing the road at 20 per m2. (Take it = 7
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Answer:
3850 rs.
Step-by-step explanation:
width=3.5 m
2 pi r=44
r=7
=area= pi(R squared-pi squared)
=3.14(10.5 squared-7 squared)= 192.5 m square
cost=192.5X20=3850 Rs.
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