the angle of depression of two ships from the top of a light house and on the same side of it is found to be 45 degree and 30 degree respectively if the ships are 200 meters apart find the height of the side.
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use √3=1.732
you should know that Tan 45°=1
Tan 30°=1/√3
Learn this problem we'll this is a most repeated sum in board .
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