1. Draw a triangle.[br][br]2. Find the midpoint of the longest side of your triangle.[br][br]3. Rotate your triangle 180 degrees using the midpoint of the longest side as the center of the rotation.[br][br]4. Use the pen tool to mark corresponding parts (side lengths and angles) with dashes and curves.
5. Make a conjecture and justify it.[br] a. What type of quadrilateral have you formed?
5. Make a conjecture and justify it.[br] b. What is the definition of that quadrilateral type?
5. Make a conjecture and justify it.[br] c. Why must the quadrilateral you have fit the definition?[br]