Arturo O. answered 05/10/18
Tutor
5.0
(66)
Experienced Physics Teacher for Physics Tutoring
You need to edit the numbers. They are appearing in triple. Anyway, I assume you meant to say the height of the tower is 324 m and the distance on the ground is 54 m. Draw a diagram of this situation and see that
tanθ = 324/54
θ = tan-1(324/54) ≅ 80.5°