What is the maximum radius of a circular area with a 20-foot diameter?

The maximum radius of a circular area is derived from the diameter by using the formula where the radius is half of the diameter. In this scenario, with a given diameter of 20 feet, you calculate the radius by dividing the diameter by 2. Therefore, 20 feet divided by 2 equals 10 feet. This indicates that the radius, which is the distance from the center of the circle to any point on its circumference, is indeed 10 feet. Thus, this answer accurately reflects the relationship between the diameter and the radius in a circle.