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Equilateral Triangle
A triangle with all sides of equal length and all angles measuring 60°, having 3 lines of symmetry and rotational symmetry of order 3.
Isosceles Triangle
A triangle with two sides of equal length and two angles of equal measure, possessing 1 line of symmetry.
Right Angled Triangle
A triangle containing one right angle (90°) and lacking lines of symmetry or rotational symmetry.
Scalene Triangle
A triangle with all sides of different lengths and all angles of different measures, having no lines of symmetry or rotational symmetry.