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.
19ft from baseline and 15.9ft from the backboard
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.
21 feet from the basket
No, it's not illegal. Rick Barry shot like that, and no ref said it was illegal.Plus, he had an 81% shooting average.
You can get up to 4 points. You can get 1 point for every freethrow you make when you are fouled. Two points for every basket you make inside the 3-point line. 3 points for every basket you make outside the 3-point line and 4 points if you were to get fouled while shooting the 3, therefore if you make your freethrow making it four points all together.