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

Discover how to measure angles using a protractor with this Year 5 article from BBC Bitesize.

If two 90 degree angles are placed back-to-back (Figure 5), they total 180 degrees. The sides of this angle form a straight line, so a 180 degree angle is a straight line. Adding two more 90 degree ...