Answer:
The height of the tower is 17.79 m
Explanation:
The question in English is
To measure the height of a tower, Juan stands at a point on the horizontal ground and observes the highest point of the tower under an angle of 62°. He approaches the tower 6 meters in a straight line and the angle is 79° Find the height of the tower
see the attached figure to better understand the problem
In the right triangle ABC
tan(62°)=h/x
h=(x)tan(62°) ------> equation A
In the right triangle DBC
tan(79°)=h/(x-6)
h=(x-6)tan(79°) ------> equation B
Equate equation A and equation B and solve for x
(x)tan(62°)=(x-6)tan(79°)
(x)tan(62°)-(x)tan(79°)=-(6)tan(79°)
x=-(6)tan(79°)/[tan(62°)-tan(79°)]
x=9.46 m
Find the value of h
h=(9.46)tan(62°)=17.79 m