The problem is easier than you think ... Note that 45° angle!
The angle of elevation of a flagpole from a point level with its base is 45°.
From a point 20 ft. further away, the angle of elevation is 30°.
What is the height of the flagpole to the nearest 0.1 ft.?Code:A * | * * | * * | * * x | * * | * * | * * | 45° * 30° * * - - - - - - - * - - - - - - - * B x C 20 D
In right triangle
Since , we have: . ft.