Collapsing Rectangle

Exploring Angle Measurement
1. How does the measurement of angle EFG compare to the angle measurement of EHG?[br]2. Make a conjecture about opposite angles of a parallelogram based on what you see.[br]3. How many total degrees are in any quadrilateral?[br]4. When angle EFG is 40 degrees, what is the measurement for angle FGH?

Information: Collapsing Rectangle