Explore Angles of Elevation and Depression
Author: Mark Fowler, Grafton HS
Date: 28 January 2015

Move points B and C to adjust 
the angle of elevation and 
the length of the triangles.

Show altitude

Show ground distance

Show slant range

Show angles of elevation/depression

Author : Awadhesh Kumar
CC-By-SA

A = Point(xAxis)
B = Point(xAxis)
C = (-3.0762627282771393, 6.2925057433514455)
a = Line(A, B)
Horizon = Line(C, a)
c = OrthogonalLine(A, a)
d = OrthogonalLine(B, a)
D = Intersect(Horizon, c)
E = Intersect(Horizon, d)
GroundHorizon = Segment(A, B)
Altitude = Segment(D, A)
SlantRange = Segment(D, B)
Elevation = Angle(D, B, A)
Depression = Angle(B, D, E)
α = Angle(B, A, D)
b = Segment(A, B)
e = Segment(D, A)
f = Segment(D, B)
β = Angle(B, D, C)
γ = Angle(D, B, A)
g = false
h = false
i = false
j = false