Teacher's 180° Protractor - 50 cm, Demonstration ToolThis 50 cm Teacher's 180 Protractor is designed for easy use on whiteboards, featuring a comfortable handle for grip and an anti slide strip underneath to keep the protractor securely in place during lessons. The protractor measures 50 cm along the bottom edge and provides clear angular markings to help students understand angle measurement and geometry concepts. Ideal for teacher led demonstrations, it supports visual and tactile learning of angles,