16.
tan(angle) = Opposite leg / adjacent leg
tan(36) = 12 / x
x = 12 / tan(36)
x = 16.5166
Round answer as needed.
17.
sin(angle) = Opposite leg / Hypotenuse
sin(x) = 12/22
x = arcsin(12/22)
x = 33.056 degrees.
Round answer as needed.
You do not say how the answers need to be rounded, so please round them as needed.