From an instrument set up at point A, the angle of elevation of point B is +16°81' while point C is +7042'. Furthermore, it was found out that the difference in elevation between points B and C considering the effect of earth's curvature and refraction is 112.883 m. Point A is in between B and C. I. If C is 1952m from A. how far is B from A? II. If the elevation of point A is 1905.342m above mean sea level, what is the elevation of B? II. What is the elevation of C?

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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From an instrument set up at point A, the angle of elevation of point B is +16°81' while
point C is +7042'. Furthermore, it was found out that the difference in elevation between
points B and C considering the effect of earth's curvature and refraction is 112.883 m.
Point A is in between B and C.
I.
If C is 1952m from A. how far is B from A?
I.
If the elevation of point A is 1905.342m above mean sea level, what is the
elevation of B?
II.
What is the elevation of C?
Transcribed Image Text:From an instrument set up at point A, the angle of elevation of point B is +16°81' while point C is +7042'. Furthermore, it was found out that the difference in elevation between points B and C considering the effect of earth's curvature and refraction is 112.883 m. Point A is in between B and C. I. If C is 1952m from A. how far is B from A? I. If the elevation of point A is 1905.342m above mean sea level, what is the elevation of B? II. What is the elevation of C?
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