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Answer» Some basic properties are....
●The sum of the ANGLES in a TRIANGLE is 180°. This is called the angle-sum property.
●The sum of the lengths of any two sides of a triangle is greater than the LENGTH of the third side. Similarly, the difference between the lengths of any two sides of a triangle is less than the length of the third side.
●The side opposite to the largest angle is the longest side of the triangle and the side opposite to the smallest angle is the shortest side of the triangle.
@SKB
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