Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC ... Types of angle; ... A scalene triangle has 3 sides of different lengths and 3 unequal angles.

Angles are measured using degrees, ranging from 0 all the way to 360 degrees in one full turn. There are many different types of angles, but possibly the most easily recognisable is the right ...

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 ...