hey, I've just started physics (yr 11&12 by distance education) and already stuck. So the very basic Question is: When working out multiple vectors, I understand that it is necessary to break them down into components. (I've been taught to graph the x component and y component for each vector and then add all the x components, ad all the y components then R=square root of (x^2+y^2)) However I keep coming up with the wrong answer for this problem: A cyclist undergoes three successive displacements of 120m at N40E followed by 82m at S72E and finally 195m at S35W. (all in degrees) The answer is 102.7m at S24.9E but I get 120.4m at S69.3W??? What have I done wrong?.