Final answer:
The measure of angle m∠XURS in the parallelogram RSTU is 160° since opposite angles in a parallelogram are congruent. The given problem involves understanding of geometry related to parallelograms and their properties.
Step-by-step explanation:
The problem given is related to vector addition and involves understanding of both parallelogram laws and basic trigonometry. The steps to solve such problems include drawing the vectors as directed line segments, constructing a parallelogram with these vectors as sides, and determining the diagonal to find the resultant vector. This process is applied to various vector problems mentioned.
The problem requiring the determination of the angle m∠XURS in parallelogram RSTU is a geometry problem and it is solved by understanding that opposite angles in a parallelogram are congruent (equal in measure). Hence, if m∠TUR is 160°, then m∠XURS, which is the opposite angle, is also 160°.