Funmaths for high school

Geometry Review - Angles & Triangles

math tutorials > angles & parallel lines tutorial

The angles inside and outside triangles have some special rules

Some new concepts for you...

  • the sum of the interior angles of a triangle
  • exterior angles of triangles
  • angles inside equilateral triangles
  • angles inside isosceles triangles

Rules for triangles and angles



Geometry problems for you to try.

Triangle problems