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25.01.2021 •
Mathematics
A lighthouse is located on an island 200 feet from the shore of the mainland as shown. If x=0.65, what is D? please help ASAP
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Ответ:
251.222 feets
Step-by-step explanation:
X = 0.65 rad
To degree ;
X = 37.24°
We need to obtain the height :
Using Sine rule :
(37. 24 + y + 90) = 180
y = 52.76
y / sin Y = D / sin D
200/ sin 52.76 = D / Sin 90
251.22231 = D / sin 90
251.22231 * sin 90 = D
Sin 90 = 1
D = 251.222 feets
Ответ: