Green Semicircle Protractor for Math

A transparent green semicircular protractor is displayed, a common tool for measuring and drawing angles in geometry. The instrument features two sets of degree markings: an outer scale from 0 to 180 degrees and an inner scale from 180 to 0 degrees, allowing for measurements from both left and right directions. Its clear design and distinct markings make it suitable for various mathematical and educational purposes.

protractor - geometry - math tool - angle - measurement - education