Cyclic Quadrilaterals

Any quadrilateral that is inscribed inside a circle is said to be a cyclic quadrilateral. In the applet below, a cyclic quadrilateral (with moveable vertices) is shown. Slide the slider slowly and carefully observe what happens. Then, reset the applet. Change the locations of the BIG POINTS and repeat this process. Repeat the previous steps a few more times. Then, answer the questions in the google form provided.