I think I will have to play it at least 20 times just to work out what on Earth it is doing.
(and that is being conservative)
I'M NOT SURE WHAT IS SLOPE, BUT I THINK THAT IS CORRECT.
Use this function to find your angle!
atan(6/10) ****Why 6? Because 72in = 6foot.****
You'll have your answer...atan(6/10)
WHERE B is the opposite AND A is the adjacent.
The slope usually just means the gradient, so here that is 10/6 = 1.67 (approx)
This assumes that the phrase "distance between first and second floor" means vertical distance (b in samgelinas's picture.)
How do you Find the Surface Area of a cylinder