Help please im nut understanding

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

Two lines that do not intersect are skew. always sometimes or never

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices