By the way, is the equation correct? With your example I am getting:
height = (9/2) / (100-90)
height = 4.5 / 10
height = 0.45
You forgot to take the tangent of the angle...
height = (9/2) / tan(100-90)
height = 4.5 / 0.176327
height = 25.52
By the way, is the equation correct? With your example I am getting:
height = (9/2) / (100-90)
height = 4.5 / 10
height = 0.45