Question

10. Given a = 7, b = 6, and c = 10, use the Law of Cosines to solve for A. Round your answer to the nearest degree.

11. Find the area of the triangle given a = 13, c = 21, and B = 87 degrees. Round your answer to the nearest tenth.

12. Find the area of the triangle given a = 6, b = 16, and C = 95 degrees. Round your answer to the nearest tenth.

Answer 1

All 20 people must go as one group if they want to save $500.

Answer 2

10) 44° (nearest degree)

11) 136.6 units² (nearest tenth)

12) 47.8 units² (nearest tenth)

Explanation:

Please see the attached pictures for the full solution.