The offensive team is allowed four downs, or plays, to advance the ball 10 yards. If they can advance the ball 10 yards in four plays, they get another four plays to move the ball 10 yards further downfield. This continues until the offense advances the ball into the end zone for a touchdown or they are unable to get the required 10 yards on four plays. In Canadian football, the same circumstances exist, except that a team gets only three downs to advance the ball 10 yards.
Chat with our AI personalities
A professional football team averaged 50,000 fans for each of its eight home games. What is the order of magnitude of the total attendance?
If you mean football or basketball, each half is 30 minutes.
Thirds! Only certain players are allowed in each third.
90 minutes, divided in two halves of 45 minutes each.
A football has a curved surface and polygons are flat. You can approximate a curved surface quite well if you use enough polygons but each polygon will still be flat and a football does have a curved (and rough) surface. Using a few thousand polygons you can create an approximation of a football with stitching seams and every detail but you will not have a curved surface you will have an approximation of a curved surface.