Triangle A B C. Angle C is 90 degrees. Hypotenuse side A B is c, C B is a, C A is b.
Solve the right triangle shown in the figure. Remember, exact lengths can be approximated on a calculator. For example, StartRoot 3 EndRoot almost-equals 1.732.

Angle A = 30 degrees, side B C = 12 feet, angle C = 90 degrees

a.
Angle B = 60 degrees, Side A C = 24 feet, Side A B almost-equals 20.784 feet
b.
Angle B = 60 degrees, Side A C = 24 feet, Side A B almost-equals 10.392 feet
c.

Angle B = 60 degrees, Side A C almost-equals 10.392 feet, Side A B = 24 feet
d. Angle B = 60 degrees, Side A C almost-equals 20.784 feet, Side A B = 24 feet
See picture.....