Angela goes to the garden. There is a fountain. A circular fountain with a 10m radius lies alone in the center of a circular park with a 200 m radius. Calculate the total walking area available to the park visitors.
Area of circle = pi × radius^2 Walking area = Area of garden - area occupied by fountain Area of garden = 3.14... × 200^2 = 40000pi Area occupied by fountain = 3.14... × 10^2 = 100pi Walking area = 40000pi - 100pi = 39900pi = 125349.5469 m^2
