The height of a lighthouse is 60 m and the depth of the seabed is 14 cm .above the lighthouse is a Tower of height 7 m for signal purposes find the total height of the structure.
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Answer:
Height of light house =60 m
Angle of depression = 30
∘
Let the distance of boat from the light house = s
Then, angle of depression = angle of elevation
tan∠ of elevation =
distance
height
tan30=
s
60
s=60
3
m
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