It is difficult some times to understand the structure of hyperbolic geometry,
so we benefit from having tools which allow us to experiment in this setting.
The best tool that I have found is the wonderfully free software
NonEuclid, which is kinda like the Geogebra software from earlier.
To get acquainted with the software, you may want to try some tutorials which are
available on that website. If you are so inclined, you can also study hyperbolic
geometry using Geogebra, with the worksheet listed below.