9" left all the way around
The Diameter Of A Basketball Rim Is 18 In. A Standard Basketball Has A Circumference 30 In. About How Much Room Is There Between The Ball And The Rim In A Shot In Which The Ball Goes In Exactly In The Center Of The Rim?
The diameter of the ball is 30/Pi ≈ 9.549 inches.
If the ball goes through the center of the rim, there will be (18 - 9.5493)/2 in = 4.2254 in between the ball and the rim.
If the ball goes through the center of the rim, there will be (18 - 9.5493)/2 in = 4.2254 in between the ball and the rim.
13.27in