Polygons can be regular or irregular. If the angles are all equal and all the sides are equal length it is a regular polygon. To find the sum of interior angles in a polygon divide the polygon into ...

Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...

“Side angle side, side side side, angle side angle, angle angle side.” Many of us with a maths phobia may dread seeing this line. But set it to a catchy tune and a bunch of adorable secondary school ...