It looks like you've uploaded a math test on quadrilaterals and polygons. I see various angle calculations, including finding the sum of interior angles, determining individual angles, and solving for variables. Do you need help verifying your answers or explaining any part of the solutions?

Here are five follow-up questions based on this topic:

1. How do you calculate the sum of the interior angles of an n-gon?
2. What is the relationship between an interior and exterior angle in a regular polygon?
3. How do you determine the value of a missing angle in a polygon?
4. Why is the sum of the exterior angles of any polygon always 360°?
5. How do you classify quadrilaterals based on their angles and side lengths?

Math Tip:

For any polygon, the sum of its interior angles is given by the formula (n - 2) × 180°, where n is the number of sides.