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How many types of triangles are there and what are they?

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They also decided to classify triangles based upon the type of angles inside the triangle. For example, a triangle with a right angle, which is an angle equal to 90º, is known as a right triangle. Some triangles, however, have three angles that are all less than 90º. read more

Equilateral, Isosceles and Scalene. There are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or no equal sides/angles: read more

An equilateral triangle is an isosceles triangle, but not all isosceles triangles are equilateral triangles.[2] 3. In a scalene triangle, all sides have different lengths. The internal angles in a scalene triangle are all different.[3] Triangles can also be classified according to their internal angles, described below using degrees of arc: 4. read more

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