It categorizes triangles into equilateral, isosceles, scalene, obtuse, right, and acute based on their sides and angles. The video also covers the concept of congruency, demonstrating how two ...

A triangle may be described by the size of its angles, eg acute-angled, right-angled or obtuse-angled. An acute angle is less than 90°. A right angle is exactly 90°.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. What is a triangle? We all know that a triangle is a three-sided shape — 1, 2, 3 sides. A ...