We want to find the radius of the circle in the given diagram.
Let's recall the definitions of radius and diameter.
Radius: Distance from the center of the circle to any point on the circumference.
Diameter: Distance from one side of the circle's circumference, through the center of the circle, to the opposite side.
We can see in the diagram that the diameter is 5in. According to the definitions, the radius is half the diameter. Therefore, the radius is 5Ă· 2=2.5in.
