A protractor is used to draw and measure angles. An angle is the amount of turn between two lines. Angles are measured in degrees with the symbol °. Angles can be labelled with 3 letters (eg DEF ...

This KS2 maths article explores how an angle is a measure of a turn. Learn how to draw and measure angles using a protractor.

Need to get a handle on a minuscule angle? All you need is your trusty plasmon nano-protractor, a new tool that can be used to do things like measure how DNA twists as it replicates. Created by ...