Prove that there are 2 different triangles with Angle A = 30 degrees , side a = 3cm and side b = 4cm Use the sin or cosine rule that I have provided and a drawing as well

please help me on this, thanks!

If secA = 2 then A = 120⁰ or A = 240 Explain why, using diagrams of the appropriate special triangle and a well labeled unit circle.

1) The perpetrator’s arm makes a spray of mud from 20 to 22 inches away from his/her shoulder. The spray of mud makes a 90-degree angle.  Calculate the length of the spray. What are the two acute angles in the triangle?How do I solve this, what does any of this mean, and what should I know at the end?