Printable 180-Degree Protractor Template - Free Download & Usage Guide #2009225 (License: Personal Use)

This black-and-white line drawing depicts a standard 180-degree protractor with dual concentric scales-inner scale increasing left to right, outer scale right to left-enabling measurement from either direction. The baseline includes a central origin point labeled “O” and a zero mark at the far right, facilitating alignment with rays or lines. Fine tick marks indicate 1-degree increments, with bold numerals every 10 degrees for clarity.

Used in educational settings (math classrooms, geometry lessons), technical drawing, woodworking, and engineering sketches; ideal for print-and-use worksheets, online learning modules, or as a reference image in measurement tutorials.