So it seems to be that you have to do a project about distance from point to line, lenght of straight segment and equation of circle using a basketball court, right?

Well, look carefully at the court dimensions and nowwhat point and line to choose to calculate their distance, what straight segmentyou decide

of line to choose to calculate its length and what circle (or PART of a circle) to choose to calculate its equation knowing it radius...

Tonio