Why doesn't trace mcsorley start

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.