Jennifer stands 80 ft above sea level at the top of a lighthouse. she sees a boat sailing 400 ft from the lighthouse.what is the angle of depression from the top of the lighthouse to the boat?round to the nearest whole degree.
2 answers:
Answer:
11 degrees is the answer
<span>Let </span>
<span>X= the altitude of the lighthouse above sea
level= 80 ft</span>
A = the angle of depression
Y= the distance of the boat from the lighthouse= 400 ft
tan A=X/Y------------------ >
80/400=0.2
arctan (0.2)=11.31 degree
The answer is the angle of depression is 11 degree
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