From a boat on the river below a​ dam, the angle of elevation to the top of the dam is 13degrees8​'. If the dam is 2369 feet above the level of the​ river, how far is the boat from the base of the dam​ (to the nearest​ foot)?

Respuesta :

Answer:

The distance from the base of the dam to the boat is = 10261 ft

Step-by-step explanation:

From the ΔABC

AB = Height of the dam = 2369 ft

BC = x = distance of the boat from the base of the dam

Angle of elevation = 13°8'

[tex]\tan \theta = \frac{AB}{BC}[/tex]

[tex]\tan[/tex] 13°8' = [tex]\frac{2369}{x}[/tex]

[tex]0.23 =\frac{2369}{x}[/tex]

x = 10261 ft

Therefore the distance from the base of the dam to the boat is = 10261 ft