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Calculate the inclined angle φ of a bend along a bended path.
Known values:
Horizontal angle θ.
Vertical angles α, β.
Solution: Angle φ in inclined plane AB1C.
In vertical triangles ABB1 and CBB1:
In triangle ABC,
Similarly, in triangle AB1C,
Then
That is
Since
That is
Then
The Golden Gate Bridge opened on May 27, 193...
Given the rate and direction of full dip of a pla...
Given the rate and direction of full dip of a plan...