Matching Pairs PROPERTIES OF THE TRIANGLEOnline version PROPERTIES OF THE TRIANGLE by Alfonso Estrada Padilla Oficial 1 What is the sum of angles property of a triangle called? 2 A triangle that has three sides of the same length. 3 A triangle that has two sides of the same length and the third side of different length. 4 What is the name given to a triangle whose three angles are less than 90°? 5 A triangle that has three sides of different lengths. 6 Any exterior angle of a triangle is equal to the sum of its interior opposite angles Equilateral triangle. Isosceles triangle. Acute-angled triangle. This is called the exterior angle property of a triangle. The sum of all internal angles of a triangle is always equal to 180° A scalene triangle.
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