When it comes to painting the lines on a basketball court, there is a specific way that they need to be done in order to meet regulation standards. The measurements for the key, three-point line, and free-throw line are all different, so it is important to make sure that these lines are accurate. For the key, the outermost paint line should be four feet from the baseline while the inner paint line should be six feet from the baseline. As for the three-point line, this line should start at 22 feet from the basket and arc outwards until it reaches a point where it is 34 feet away from the basket. Lastly, the free-throw line should be 15 feet away from the backboard and painted in a straight line. While these might seem like small details, making sure that all of the lines on a basketball court are correctly painted is essential in ensuring fair play during games.