Question

Find the angle of elevation of the top of a 15m high tower at a point 15 m away from the base of the tower

Answer 1

Angle of elevation = Tan^-1 (Hight of object/Height from object)

=Tan^-1 (1)

= 45 degree or π/4 radian

OR

Simply put,

If Height from object = Height of object

Then,

Angle of elevation

= 45 degree or π/4 radian