Question

CNA SOMEONE HELP ME

measure of
angle C = 48 degrees, a = 5, b = 9. What is the length
of c to the nearest tenth?

Answer 1

Answer: 6.8

Explanation:

By the Law of Cosines,

`c^2 = 5^2 + 9^2 - 2(5)(9)\cos 48^(\circ)\\\\c=\sqrt{5^2 + 9^2 - 2(5)(9)\cos 48^(\circ)}\\\\c \approx 6.8`