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 three-quarter turn is 270°. An acute angle is less than 90°. An obtuse angle is between 90° and 180°. A reflex angle is between 180° and 360°. These are all right angles as they are all a ...

The activities focus on spatial reasoning and geometry, which are often taught during the last few months of the school year, and which provide important foundations for mathematics reasoning more ...