Easy, a right angel is 90 degrees.But, since the sum would be 180 degreeses, the sides of the right angel will be called a <span>hypotenuse. In other words,
104 divided by 12 is 8.6666666667 So if you round up it would be 9 but technically he could only get 8 fence posts from 104 inches of lumber if he needed 12 inches for each fence post.
