How far
From the top of a lighthouse 145 ft above sea level, the angle of depression of a boat is 29°. How far is the boat from the lighthouse?
Correct answer:
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Try conversion angle units angle degrees, minutes, seconds, radians, grads.
You need to know the following knowledge to solve this word math problem:
- planimetrics
- right triangle
- triangle
- basic functions
- percentages
- goniometry and trigonometry
- tangent
- cotangent
Units of physical quantities:
Grade of the word problem:
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