Audio and video pronunciation of Mathieu brought to you by Pronounce Names (http://www.PronounceNames.com), a website dedicated to helping people pronounce names correctly.
The interior angles of a triangle always add up to 180 degrees. If you make one angle bigger, another angle will become smaller: The exterior angles of a triangle always add up to 360 degrees: In every triangle, the shortest side is always opposite the smallest interior angle. The longest side is always opposite the largest interior angle. âOppositeâ means that the side does not touch the point of the angle on either end. Equilateral triangles must have three angles of 60 degrees each, and all triangles with three 60 degree angles are equilateral.
A triangle with all sides equal is called equilateral, a triangle with two sides equal is called isosceles, and a triangle with all sides a different length is called scalene. A triangle can be simultaneously right and isosceles, in which case it is known as an isosceles right triangle.f a line is drawn parallel to one side of a triangle so that it intersects the other two sides, it divides them proportionally, i.e., (14). (Jurgensen 1963, p. 251). In other words, a line parallel to a side of a triangle cutting the other two sides creates a triangle similar to the first.