A triangle is a three-sided shape, where the sides are straight and meet at three vertices. The prefix "tri" means three. There are several types of triangles. Do you know what they are?

Keywords triangles, properties, types, equilateral, isosceles, scalene, congruency, area, Pythagorean theorem, right triangle, mathematics, architecture, engineering Email us at footage@avgeeks ...

Get a fresh, colourful angle on the basics of geometry! What are angles? Do you know the difference between a triangle and a quadrilateral? These videos on the basics of geometry will help you ...

The Documentary Iconic Geometry Episode 2 of 3 Cecil Balmond examines the shapes that define three of the world's iconic structures, Stonehenge, the Taj Mahal and the Great Pyramid. Show more ...