The Foul Line - For all size courts the 'foul line' is 15 feet in front of the backboard.
The Key - The key is 12 feet wide and is the same for all basketball courts. The backboard extends 4 feet out over the baseline into the key. A half circle of diameter 6 feet extends from the foul line away from the basket to complete it.
The 3 Point Line (Arc) - For NBA Basketball Courts the 3 point arc is 22 feet to the center of the rim on the sides with a straight line extending out 16 feet 9 inches from the baseline. Past those points the line extends out 23 feet 9 inches from the center of the rim.
Line Markings - All line markings on the floor are 2 inches wide and can vary in color.
Passing - Regardless of which pass is used, certain factors are common to all passes.
Catching - Receiving the ball is a most important fundamental skill. Many turn overs involve failure to handle a pass properly.
Dribbling - It is used to advance the ball, break for a basket, or maneuver out of a difficult situation.
Shooting - The primary objective of the game is to score goals.
Pivoting - It is a maneuver that protects the ball by keeping the body between the ball and the defensive player.
BACKBOARD AND RIM
The regulation height above the ground for the rim (hoop) is 10 feet, and the rim is 18 inches in diameter. The backboards are 6 feet wide (72 inches) by 42 inches tall, with the inner square being 24 inches wide by 18 inches tall.