Angle set from 2 squares

[mwmkravchenko]

Reminds me of a discussion I had about 15 years ago with a capable young man above stair angle. He was stuck on needing to know the angle. I said. Don't care. Give the rise in height over the run in length of stairs. I'll figure out the rest. Only after I drew it out did he finally get the concept. Sometimes the math is required. Sometimes it simply gets in the way. You will be much more accurate with your system than with a protractor!