This is a very simple protractor and straight edge. I think the measurements are reliable, but I didn't want to go to much into detail and I didn't even bother with the ruler at the bottom.

I want to see how many comments and likes I can get so share your thoughts and click the heart!

Thanks!

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/gsPgwOK1iPh