you know how to find the area of a circle: A = πr^2
so, subtract the area of the small circle from that of the large one.
A circular garden of radius 25m has a concentric circular fountain of radius 3m.find the area of the garden available for the children to playin.
2 answers
Radius of circular garden=25m
Radius of inner circle=25-3
=22m
Area of garden available to play children in=pie r^2
=3.14×(22)^2
=3.14×484
=1519.760m^2
Radius of inner circle=25-3
=22m
Area of garden available to play children in=pie r^2
=3.14×(22)^2
=3.14×484
=1519.760m^2