Illustrator (*.ai) and PDF files for a unit circle for Trigonometry study. Created by Rebekah Keely in collaboration with Marc Olsen in the Innovation Center Makerspace at Folsom Lake College. Designed to fit on a 12" x 12" piece of hobby plywood. Set up for our Universal PLS.150D. Illustrator doesn't do "hairline" strokes, so the strokes here are .001, but they can be set to hairline in CorelDraw or Inkscape.