NBA and NCAA is 15ft from the backboard.
On our court there are additional lines, one between the baseline and freethrow line "we'll call this line A" and one between the freethrow line and halfcourt "we'll call this line B" that I use. I believe the extra lines are for volleyball. So I line A, freethrow line, B and halfcourt for our suicides.
15 ft from the basket
19ft from baseline and 15.9ft from the backboard
no if your foot stays behind the line
The distance of the free throw line is 15 feet (or 4.572m) from the backboard. The rim is 45cm in diameter, plus the 15 cm that divide the rim from the backboard, making the front of the rim 3.972m (or 13.03 feet) from the foul line.
No im sorry but you can not have your foot on the line when you are shooting a freethrow. If you do put your foot on the line and you make it the shot will not count.
The three-point line in college is 20.75 feet. This is measured from the centre of the basket.