alleryStart learning →A lighthouse is 100 m high. A boat is seen from its top at a depression of 30°. How far is the boat from the base?
A100√3 m
B100/√3 m
C200 m
D50√3 m
Answer & Solution
Correct answer: A. 100√3 m
Distance equals 100 divided by tan 30°, which is 100 times √3, so 100√3 m.
Keep practising Heights and Distances
Browse all Heights and Distances questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
Which ratio would you use to find a ladder's length from the height it reaches and its angA balloon 88.2 m high rises in view from 60° to 30° for a 1.2 m girl. How far does it drifA tower is 30 m high. At what distance from its foot is the top seen at 60° elevation?A tower is 100 m tall. How far from its foot must one stand on level ground to see the topA 6 m ladder makes 60° with the ground and leans on a window sill. How high is the sill abA 50 m tower is seen at 30° and 60° from opposite sides in line. Distance between the poinWhich value equals tan 30°?Which trigonometric ratio links a tower's height and the ground distance from its foot to