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Why can't the triangle be an
That triangle (2-2-4) cannot
That triangle (2-2-4) cannot exist.
Remember that, for any triangle, the length of 3rd side must follow the rule"
difference in lengths of 2 sides < 3rd side < sum of lengths of two sides.
So, if two sides have lengths 2 and 2, it must be true that:
0 < 3rd side < 4
So, the length of the 3rd side must be less than 4
For more on this, watch: https://www.greenlighttestprep.com/module/gre-geometry/video/860