Matching Pairs Properties of the TriangleOnline version Properties of the Triangle; triangle isa three-sided polygon. The notation that is usually used is to name their vertices with the uppercase letters A, B and C (but they can be others, as long as they are uppercase) and sides opposite these vertices are identified with lowercase letters by Sandra Marcela Paternina Rico 1 Stralene triangle one of the properties of scalen triangles is: Neither side is the same a ≠ b ≠ c ≠ a where a, b and c are three sides of the triangle in the following triangle the property is demonstrated. 2 Property of a right angle . the property of a right angle is : Two sides that form the right angle may or may not be the same If they are equal, the triangle is known as the isosceles right triangle 3 The sum of all the internal angles of a triangle is always equal to 180 °. This is called the angle sum property of a triangle. 4 Ownership of the equilateral triangle In an equilateral triangle where all sides are equal, a = b = c, where a, b and c are the three sides of the triangle. All angles are equal to 60º.
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