Assuming you meant "A" instead of "H", note that if A is at (0,0), then
A to B = (300,0)
B to C = (167,-109)
So, adding them up, C is at (467,-109) and is 480 km from A
city A is 300km due east of city B , city C is 200km on a bearing 123 degree from city B. how far is it from C to H?
2 answers
171km