Question

From city A to city B, a plane flies 650 miles at a bearing of 48 degrees. From city B to C, thr plane fles 810 miles bearing of 115 degrees. Find the distance from city A to C and the bearing from city A to city C.

Answer 1

use the law of cosine

Answer 2

c^2 = a^2 + b^2 + 2 * a * b * cos(theta)
where theta is the angle between a and b

Answer 3

i cant use that for the test i have to draw a triangle

Answer 4

the law of cosine involves the triangle