Here is me IG- im a cat TvT

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

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

1. what is the measure of ∠abc? what is the measure of ∠abd?