4. Solve. x² – 81 = 0 (1 point) 0 –9 –9, 9 9

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

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?