Question

34°

8
Solve for c.
9
c = [?
C Round your final answer
to the nearest tenth.
Law of Cosines: c² = a² + b² - 2ab-cosC

Answer 1

5.05

Explanation:

c² = 8² + 9² - 2(8)(9)cos34°

= 64 + 81 - 119.52

= 25.48

c = √25.48

= 5.05