Có bao nhiêu vecto khác 0 được tạo thành từ các đỉnh của một đa giác lồi 30 cạnh

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?

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)

Can someone me i’m confused. will give brainliest and a whole bunch of points