In the Assembly Hall one day, Tyler spends some time trying to figure which row gives the best view of the screen. The screen is 18 feet tall, and its bottom edge is 6 feet above eye level. Tyler finds that sitting 36 feet from the plane of the screen is not satisfactory, for the screen is far away and subtends only a 24.2-degree angle. Verify this. Sitting 4 feet from the screen is just as bad, because the screen subtends the same 24.2-degree angle from this position. Verify this also.