Answer:
943 square ft.
Explanation:
If the dog is leashed to the corner of a house with a rope or leash of a radius of 20 feet, then the dog can run in a 3/4 part of a circular area around the corner of the house.
The running area of the dog is given by the formula of the area of a 3/4 part of a circle:
A = 3/4* πr^2
where r is the radius of the circle.
Substituting the given value of r = 20 feet, we get:
A =3/4 *π(20)^2
A =3/4*22/7*400 square ft.
A=942.85 in nearest square ft it is 943 square ft.