Please help with questions. Thx.

2. Solve for the missing length and the other two angles in the triangle below. B 15.8 54. A 7.4 C Part 1: Use the law of cosines to find the missing third side. (4 points)Part II: Use either the law of cosines or the law of sines to find the measure of angle C. (4 points) Part III: Use any method you like to find the measure of angle B. (2 points)3. Solve the triangle below. B 16 22 A 21 Part I: Use the law of cosines to find the measure of angle B. (4 points) Part II: Use the law of sines to find the measure of angle C. (4 points)Part III: Use any method you like to find the measure of angle A. (2 points)