Answer: x = 40 degrees and y = 80 degrees
Step-by-step explanation: Using the fact that the sum of the interior angles of a triangle is 180 degrees, we can find that x = 40 degrees in the triangle on the left. For the polygon on the right, we can use the fact that the sum of the interior angles of a quadrilateral is 360 degrees to find that y = 80 degrees.
Therefore, x = 40 degrees and y = 80 degrees.