A cylindrical vent 10 in. in diameter must be cut at an 10" angle to fit on a gable roof with a - pitch. This means that for the vent itself the ratio of rise to run will be 4 : 5. Find the height x of the cut that must be made on the cylinder X 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. (Round to the nearest whole number as needed.)