A boater wishes to cross the canal which is 3.0km wide. He wishes to land at a point 2.0km upstream from his starting point. If the current in the canal flows at 3.5km/h and the speed of the boat is 13km/h

(a) what course should he steer

(b) how long will his trip take

Ok, I'm having a "dumb" moment right now and I'm kind of blanking. Could someone show me how to do part A, as once that is determined part B becomes pretty trivial.