CBSE Class 10 Answered
as observed from the top of the lighthouse, 100m high above sea level , the angle of depression of a ship changes from 30 degrees to 60 degrees.
determine the distance travelled by ship during the period of observation.
Asked by Akansha | 17 Mar, 2015, 10:07: PM
Expert Answer
Answered by Vimala Ramamurthy | 18 Mar, 2015, 10:50: AM
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