Bort wanted to go on a walk after a long day at school when he came across a red ball in the tree. He wanted to know how high it was so to find the height of the tree, he used tan(43) * 15= 13.9 ft. So the ball was 14 ft high.
Bort was playing with his favorite red ball when he accidentally threw it too high and it went over the fence. He looked and found the ball on top of his neighbor's roof.
Bort looked up to see his ball stuck on the roof. He wanted to know how far he was from the roof to determine where to place the ladder. He knew that the ball was 16 feet away from him and he was looking at it at a 45 degree angle. So he figured out that cos(45°)x16=11.3. So Bort is 11.3 feet away from the roof.