The word equilateral means equal lines ... An acute-angled triangle has three angles that are all less than 90°. A right-angled triangle has one angle that is exactly 90°.

Equilateral triangle. An equilateral triangle is a ... out an angle in a scalene triangle is if we know the other two angles. Right-angled triangle. A right-angled triangle is a triangle where ...

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 ...

In the case of a square, it’s possible to mimic the resulting pattern by constructing a series of larger and larger right-angled triangles ... corners of an equilateral triangle, they meet ...