how do we find out the size of the markings of the inner square on the backboard
2 by 2
A size 3 ball requires a size 3 hoop. A size 3 hoop is a 14" diameter hoop. (Usually with a 32" backboard.)
The official NBA basketball backboard is 72 inches (6ft) by 42 inches (3.5ft)
The Official Basketball Hoop size is 21 inches
A basketball hoop is just a hoop. A basketball is a ball for sports.
a hoop has a diameter of 18"
Throughout middle school, high school, college and professional basketball, the backboards are the same size. They are also the same distance off of the floor at 10 feet.
The outside measurement of the painted square on a regulation Size Basketball goal is 24"wide by 18" tall
The height of any basketball hoop size will always be 10 feet
4 inches
24 x 18