Asked by Ashifola Davido

From the top of a tower,the angle of depression of a boat is 30degree if the tower is 20cm high how far is the boat from the foot of the tower
Answered by Reiny
From your diagram, you should see than
tan30° = 20/x, where x is the distance you need.

However, a tower 20 cm high ????
You probably meant 20 metres.
Answered by ARUN
30
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