Answer: 43.7811 feet
Explanation:
Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.
Tan α = opposite side / adjacent side
Where α is the acute angle with respect to the horizontal (x), the opposite side is the height of the ramp, and the adjacent side is the horizontal distance between the ramp edges.
Replacing with the values given:
Tan x = 11.5/ 12
Solving for x
x = arc tan (11.5/12)
x = 43.7811 feet
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