Triangles -Frederik-

                                                                      TRIANGLES

A triangle is a closed figure with three sides

There are various types of triangles such as:

* Equilateral triangle
   it has all three sides that are equal length, and consequently all three interior angles are equal size also.

* Isosceles triangle
   it has two sides that are the same length and the other side a different          length.

* Scalene triangle
   it is one that has no sides that are of equal length.

* Right triangle
   it has exactly one angle that is 90 degree.

* Obtuse triangle
   it is a triangle where one (and only one) angle is an obtuse angle (its greater than 90 degree)

* Acute triangle
   it is a triangle where all of the angles are acute angels.