10: Appendix Last updated Sep 12, 2020 Save as PDF 9.5: Non-Euclidean Geometry 10.1: Appendix A - Solution to Select "Try it Now" Questions Page ID50924 ( \newcommand{\kernel}{\mathrm{null}\,}\) 10.1: Appendix A - Solution to Select "Try it Now" Questions10.2: Appendix B - Solutions to Selected Exercises10.3: References Contributors and Attributions Saburo Matsumoto CC-BY-4.0