PROPERTIES OF TRIANGLEVersion en ligne Identify the properties of triangles par Elver Vega 1 properties of triangles 2 Classification of triangles according to their sides The sum of the interior angles of a triangle is equal to 180 ° Any line parallel to either side that passes through the center of symmetry, splits the square into 2 equal parts Each equilateral triangle is equiangular, that is, the measures of its internal angles are equal, in this case each angle measures 60 ° El cuadrado tiene 2 diagonales If two sides of a triangle have the same measure, then the opposite angles are also of equal measure. In a triangle, a larger side opposes a larger angle. A triangle is equilateral if it has three equal sides. A triangle is isosceles if it has two of its equal sides. A triangle is scalene if it has three unequal sides.