a)
The first step is to convert the given lengths to feet. Recall, 12''(inches) = 1'(foot)
Given that set = 39' 6'', we would convert 6'' to feet. it becomes
6/12 = 0.5
thus,
Set = 39' 6'' = 39 + 0.5 = 39.5'
Also,
Run = 62' 3''. BBy converting 3'' to feet, it becomes
3/12 = 0.25
Thus,
Run = 62 + 0.25 = 62.25
A right triangle is formed as shown below
From the triangle, x represents the length of the connection and it is also the hypotenuse of the triangle. We would find x by applying the pythagorean theorem which is expressed as
hypotenuse^2 = one leg^2 + other leg^2
Thus, we have
x^2 = 39.5^2 + 62.25^2
x^2 = 5435.3125
x = square root of 5435.3125
x = 73.72'
The length of the connection is 73.72'