Solve the problem.
-An old house has a basement stairway that has steps with 7.25 inch risers and 8 inch treads. What is the slope of the stairway?
A) 9.06
B) 0.75
C) 0.91
D) 1.1

Question

Quizplus · Accepted Answer

The slope of the stairway is calculated using the Pythagorean theorem, where the slope is the square root of the sum of the squares of the riser and the tread. Thus, slope = sqrt((7.25)^2 + (8)^2) = sqrt(52.5625 + 64) = sqrt(116.5625) ≈ 10.8. However, slope in the context of stairs is often considered as the rise over run, which is 7.25 inches over 8 inches = 0.90625, which rounds to 0.91.

Solve the Problem. -An Old House Has a Basement Stairway That Has Steps