Objective of Lesson 24
Tangential Method
Both Angles are above horizontal line of sight Both Angles are below horizontal line of sight One of the Vertical Angles is above and the other below the horizontal line of sight Examples
Both Angles are above horizontal line of sight
Both Angles are below horizontal line of sight
One of the Vertical Angles is above and the other below the horizontal line of sight
Examples
Subtence Bar Method
Instrument Method Effect of Angular Error Examples
Instrument
Method
Effect of Angular Error
Exercise 24
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