1- Suppose you first walk 3,00 m in a direction 17,00 degrees west of north and then 5,00 m in a direction 43,00 south of west. How far are you from your starting point? (Hint: if you represent the two legs of the walk as vector displacements A and B, then this problem finds the length of their sum, R = A + B.)2-

A new landowner has a triangular piece of at land she wishes to fence. Starting at the west corner, she measures the rst side A to be 63,5 m long and the next side B to be 102,3 m. These sides are represented as displacement vectors A and B in the gure below. The angle between A and the x- axis is 30,1 degrees, and the angle between B and the y-axis is 12.5 degrees. She then correctly calculates the length and orientation of the third side C. What is the magnitude of the vector C in meters