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Given the direction of full dip and the rate and direction of an apparent dip of a plane or seam, find the rate of full dip.
Known values:
Full dip direction = α
Apparent dip direction = β
Apparent dip rate = 1 in y (AC = y)
Solution:
Full dip rate = 1 in x (AB = x)
In triangle ABC:
i.e.
i.e.
cot full dip (1 in x) = cot apparent dip (1 in y) X cosine angle between full dip and apparent dip (β-α)
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...