This is a great activity for students to practice matching reasons for given statements in basic geometry proofs.
If you want to use it as a matching activity, print out each individual proof (pages 3-6) and cut out the diagram, statement-reasons, and each individual reason separately. I did each of the four proofs on different colored paper and stored them in sandwich baggies. I had the students record their final proofs on the recorder pages (pages 1-2) to be turned in.
If you would rather have students come up with the reasons on their own, just print out the first two pages for students to record their answers on.