To calculate the depth (d) of a ramp you need:
1) the height (h) and the angle of incline (A) or,
2) the height (h) and the length (r)
To calculate the angle of incline (A), or tilt, you need:
1) the height (h) and the length (r), or
2) the depth (d) and the length (r), or
3) the height (h) and the depth (d).
Angles
A =
B =
C = 90
Sides
h =
d =
r =