This is a scalene triangle. All the sides are different lengths and each angle is different as well. This one’s a right angled triangle, where one angle is always a right angle, so that's 90 ...

A scalene triangle with angles of 50°, 60° and 70° is an acute-angled triangle. An isosceles triangle with angles of 90°, 45° and 45° is a right-angled triangle. This is the only combination ...

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 ...