In your class you have scores of 80,73,70 and 77 on the first four of five test

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

What is the value of x? enter your answer in the box. photo attached.

Which best explains why this triangle is or is not a right triangle?