In a transit theodolite survey, where the base is accessible, calculate the height of a building from the ground surface when the height of the theodolite is 0.57 m., the distance between the base of the object and the instrument is 39.50 m., and the measured angle by theodolite is 10°42'30". Plot the same with a suitable scale.
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Answer:
1. Base of the Object being Accessible (Fig. 9.13):
To find the height of the object above a Bench Mark (or above the instrument-station):
Explanation:

Let H = the height of the object above the B.M.
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