A cylindrical vent 15in. in diameter must be cut at an angle to fit on a gable roof with a 3/5 pitch. This means that for the vent itself, the ratio of rise to run will be 3:5. find the height x of the cut that must be made on the cylinder to make it fit the slope of the roof (See the figure).
The height x of the cut that must be made on the cylinder to make it fit the slope of the roof is ____ in.