A triangle is formed by three segments, but not every set of three segments can form a triangle.Segments with lengths of 7, 4,and 4 can form a triangle.Segments with lengths of 7, 3, and3 cannot form a triangle.Even If layed flat, theselines would not meet!A certain relationship must exist among the lengths of three segments in order for them to form a triangleTriangle Inequality TheoremThe sum of any two side lengths of a triangle is greaterthan the third side lengthВAB + BCBC + ACAC + ABSTHIS SHOULD BE TRUE FOR ALL 3!!PRO TIP: Add the 2 smallest numbers together 15t!These are the most likely to be wrong if the lengths cannot form a triangle