High School: Arc radius 19 feet 9 inches (6.02 m), no less than 5 feet 3 inches (1.60 m) from each sideline.
NCAA College: Arc radius 20 feet 9 inches (6.32 m), no less than 4 feet 3 inches (1.30 m) from each sideline.
FIBA: Arc radius 6.75 meters (22.1 ft), no less than 0.9 meters (3.0 ft) from each sideline.
WNBA: Arc radius 22 feet 1.75 inches (6.7501 m), no less than 3 feet 4 inches (1.02 m) from each sideline.
NBA: Arc radius 23 feet 9 inches (7.24 m), no less than 3 feet (0.91 m) from each sideline.
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High School: Arc radius 19 feet 9 inches (6.02 m), no less than 5 feet 3 inches (1.60 m) from each sideline.
NCAA College: Arc radius 20 feet 9 inches (6.32 m), no less than 4 feet 3 inches (1.30 m) from each sideline.
FIBA: Arc radius 6.75 meters (22.1 ft), no less than 0.9 meters (3.0 ft) from each sideline.
WNBA: Arc radius 22 feet 1.75 inches (6.7501 m), no less than 3 feet 4 inches (1.02 m) from each sideline.
NBA: Arc radius 23 feet 9 inches (7.24 m), no less than 3 feet (0.91 m) from each sideline.
The high school 3-point line is 19 feet, 9 inches.
In the NBA, from the top of the arch, it is 23 feet, 9 inches.
the three point line for highschool basketball is at the top of the key 20' feet from the basket. in college they move it back a foot to 20' 9'' feet, and in the NBA its 23' 9''