If the rise of the roof shown in the illustration is 5 feet, and the run is 9 feet, find the pitch of the roof.
B) 45
D) 14

Question

If the rise of the roof shown in the illustration is 5 feet, and the run is 9 feet, find the pitch of the roof. 
B) 45 
D) 14

Quizplus · Accepted Answer

The pitch of a roof is the ratio of rise to the run, expressed as a fraction. 
In this case, the rise is 5 feet and the run is 9 feet, so the pitch is:
Pitch = Rise/Run = 5/9
To simplify this fraction, we can divide both sides by the greatest common factor, which is 1:
Pitch = 5/9
Therefore, the pitch of the roof is 5/9. Choice C is the only option that matches this value.

If the Rise of the Roof Shown in the Illustration