Question

Question 5.5. Find mAngleC. Round to the nearest degree.

(Points : 1)
24°

58°

32°

66°

Answer 1

please help

Answer 2

Use the cosine rule to find m\(\angle C\) .

\(\cos (\angle C) = \dfrac{a^2 + b^2 - c^2}{2ab}\)

Answer 3

where a is the side opposite to angle A that is BC
and b is side opposite to angle B that is AC
and similarly, c is the side opposite to angle C that is AB