Asked by Jackson gift

Draw a sketch in each question leave the answer in surd form with rational denominator
From the top of a tower, the angle of depression of a boat is 30degree. If the tower is 20m high how far is the boat from the foot of the tower

Answers

Answered by oobleck
if you drew the sketch, and reviewed your basic trig functions, you can see that

20/x = tan30°
Answered by mathhelper
Make a sketch and using the basic trig ratios, which you MUST learn, .....
x/20 = tan30° , where x is the distance between the boat and the tower along the horizontal.
= 20tan30° = .....
Answered by mathhelper
oops, read the angle wrong,
use oobleck's solution
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