Answer:
The angle ramp make with the lower level is 19.25∘
Explanation:
Using the sine function:
sin θ = H e i g h t D i f ere n c e / R a mp Length
sin θ = 3.1 / 9.4
Taking sine inverse on both sides:
θ = s i n − 1 3.1 / 9.4
θ ≈ 19.25 ∘
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