Goal (sport) the ball can be kicked either under the crossbar for a goal, or over the crossbar between the posts for a point. The vertical supports are usually called "goal posts" and the horizontal top is usually called the "crossbar". A goal in these games normally requires that the ball or puck be sent between the posts, under the crossbar and completely behind the goal line. In Australian rules football, there is no crossbar but four uprights instead. In netball, a single post at each end of the court supports a horizontal hoop that the ball must fall through. In basketball,
Five points determine a conic Five points determine a conic In Euclidean and projective geometry, just as two (distinct) points determine a line (a degree-1 plane curve), five points determine a conic (a degree-2 plane curve). There are additional subtleties for conics that do not exist for lines, and thus the statement and its proof for conics are both more technical than for lines. Formally, given any five points in the plane in general linear position, meaning no three collinear, there is a unique conic passing through them, which will be non-degenerate; this is true over both the Euclidean plane and any pappian projective plane.