Draw and label the triangle/triangles. Two sides and an angel are given. Determine whether a triangle (or two) exists, and if so, solve

Please explain directions in detail for the steps to solve one of the ambiguous cases above so that I can understand the process. Thank you!

In Exercises 21-40, two sides and an angle are given. Determine whether a triangle (or two) exists, and if so, solve thetriangle(s).to21. a = 4, b = 5, a = 160to sbie 22. b = 30, c = 20, B = 7023. a = 12, c = 12, y = 4024. b = 111, a = 80, a = 25025. a = 21, b = 14, 8 = 10026. a = 13, b = 26, a = 12027. b = 500, c = 330, y = 4028. b = 16, a = 9, B = 137029. a = V2, b = V7, B = 10630. b = 15.3, c = 27.2, y = 11.6031. a = 270, c = 12, a = 732. y = 14.50, b = 10, c = 433. B = 520, b = 18, a = 2034. B = 470, b = 18, c = 2235. y = 20, b = 6.2, c = 1036. a = 28, a = 5, b = 3.837. a = 3, b = 5, a = 4038. b = 13, c = 9, y = 7039. a = 11, c = 1.5, y = 1040. b = 8, c = 10, B = 80