1. rstu is a parallelogram. if m∠tsv = 31° and m∠svt = 126°, explain how you can find the measure of ∠urv. show all steps of your work, and refer to any properties of triangles, parallelograms, or triangle congruency theorems as necessary to justify your response.
quadrilateral rstu, diagonals su and rt intersect at point v.
show work, you.