Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Heights and Distances
When seen from a light-house 50 m above sea-level, the angle of depression of a boat is 30°. How far is the boat from the light-house?
1
86.6 m
2
42 m
3
50√3 m
4
More than one of the above
5
None of the above