A biker travelled 270.0 meters 42o N of E to point A, then 80.0 meters west to point B, and finally, 120.0 m northwest to reach point C. (a) How far and in what direction should he travel to go back to where he started? (Ans: 267.92 m, 82.32o S of W) (b) From the starting point, how far and in what direction should he go to reach point B in a straight line? (Ans: 217.25 m, 56.26o N of E

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