Question

Circle help.

Answer 1

Okay so since we have to find the major arc we will take θ as 330. Agreed?

Answer 2

@FortyTheRapper

Answer 3

Arc length is given by: \[s = r (\theta)\]
where r is the radius and theta is the angle formed by the arc in radians

Answer 4

Cosine and Sine are co-functions where co represents complementary.
The cosine of an angle x and the sine of the complement of x are equal.