Relacionar Columnas The properties of triangles.Versión en línea Match the types of triangles with their descriptions based on the classification according to internal angles and according to the length of its sides. por eileen tatiana saenz lugo 1 Right 2 Equilateral 3 Acute 4 Isosceles 5 Scalene 6 Oblique All sides uneven. It has an angle of 90º (right). Two equal sides and one unequal. All its angles measure less than 90º (acute). It has an angle of more than 90º (obtuse). All sides are equal.