Question

When the angle of elevation of the sun was 55 degrees, the length of the flagpole was 210ft. Find the height of the flagpole to the nearest foot.

Answer 1

We have a right triangle;
Data:
Ф=55º
adjacent=210 ft
opposite=height of the flagpole=h

tan Ф=opposite/ adjacent
tan 55º=h/(210 ft)
h=(210 ft)*tan 55º
h≈300 ft

Answer: the height of the flagpole would be 300 ft.