Answer:
The maximum area that the goat can graze is 400
square feet.
Explanation:
The maximum area that the goat can graze is the area of the circle that can be formed due to its circular movement. The length of the rope represents the radius of the circle, so that;
Area of a circle =


Where r is the radius and equals 20 feet in the given question.
Thus,
Area =

= 400

Area = 400
square feet
The maximum area that the goat can graze is 400
square feet.