OUR Math 8.1.10.5 Cool-down: Identifying Side Lengths and Angle Measures
Here is a diagram showing triangle ABC and some transformations of triangle ABC.
Using the applet above:
On the left side of the diagram, triangle ABC has been reflected across line AC to form quadrilateral ABCD.
On the right side of the diagram, triangle ABC has been rotated 180 degrees using midpoint M as a center to form quadrilateral ABCE.
Using what you know about rigid transformations, side lengths and angle measures, label as many side lengths and angle measures as you can in quadrilaterals ABCD and ABCE.