This is how to measure and cut angles acute and obtuse. This is my preferred way.
How to cut angles https://www.youtube.com/watch?v=zoDNKneoM3E&t=2s
How to cut over 45 degrees on your miter saw https://www.youtube.com/watch?v=VNFjzMmi6NE&t=204s
Inside angles without angle finder https://www.youtube.com/watch?v=EyVL2ByubVw
Outside angles without angle finder https://www.youtube.com/watch?v=JFmo2uOq0Xw
