A large circular farm is next to a river. A farmer can fence the farm with an iron wire of length 18.84 m. How much area will be enclosed by the fence (in m2)?
28.26
Length of the iron wire = 18.84 m
So, circumference of the circle enclosed by wire = 18.84 m
2πr=18.84 m
So, radius of the farm, r=18.846.28=3m
Total area enclosed by the fence = πr2
=3.14×32=28.26 m2