1.18.5 - Measurement of vertical angles
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Practice Questions
Test your understanding with targeted questions
Define a vertical angle.
💡 Hint: Think about how angles are measured above or below a flat surface.
What is the purpose of the altitude bubble on a theodolite?
💡 Hint: How do we check if something is straight?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a vertical angle?
💡 Hint: Consider what vertical angles represent.
True or False: The altitude bubble should be off-center for accurate vertical angle measurements.
💡 Hint: What happens to measurements if the bubble is not centered?
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A surveyor measures a vertical angle of elevation to the top of a building which reads 45° on the left face and 47° on the right face after averaging. What is the true vertical angle of elevation?
💡 Hint: Remember to use the average of both readings!
During a project, a surveying team records a vertical angle of depression to a lake as 30° and then rechecks from the opposite side to find 32°. What is the average depression angle?
💡 Hint: Use the same averaging method as before.
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