The sum of the
angle of a triangle is 180 degrees. If you are to draw a pattern
of equilateral triangles then you know that an equilateral triangle has three equal sides. Also, its
angles are the same, having 60 degrees at each corner of the triangle. A triangle cannot qualify as an equilateral triangle if it is greater than 180 degrees or less than 180 degrees as a total angle. Also if a triangle that has no two right angles, then it is called a scalene
triangle. If the triangle has two right
angles, it is called isosceles triangle. A triangle with equal sides is called
an equilateral triangle.
