Use the given figure to answer the following. (The figure is not drawn to scale.)
Figure of triangle `ABC`. Point `D` is on segment `AB`, such that segment `CD` is perpendicular to segment `AB`, and divides the angle at `C` into two smaller angles labeled `alpha` and `beta`. Angle `alpha` is across from point `A` in right triangle `ACD`. Angle `beta` is across from point `B` in right triangle `BCD`.
Find
if
.
Use the given figure to answer the following. (The figure is not drawn to scale.)
C
A
D
Find 3 if B = 20