Answer: 4.25, 15, and 38.7°
Explanation:
Use SOHCAHTOA
Sine is opposite over hypotenuse
Cosine is adjacent over hypotenuse
Tangent is opposite over adjacent
1.) tan(28) = x/8
8*tan(28) = x
x = 4.25
2.) tan(28) = 8/x
8/tan(28) = x
x = 15
3.) tan(x) = 4/5
x = arctan(4/5)
x = 38.7°