Manyatta Village is 74 km North West of Nyangata Village. Chamwe village is 42 km west of Nyangata. find the bearing of Chamwe from Manyatta

starting from M, you go 74 SE and 42 W

That is
(52.33,-52.33) + (-42,0) = (10.33,-52.33)

tanθ = -52.33/10.33 = -78.8°

So, the bearing is 168.8° or E 78.8° S or S 11.2° E