An angle greater than 180 degrees.
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The sum of the interior angles of a triangle in euclidean geometry equal 180 degrees
Any number you like.
In basic Euclidean geometry no, the sum of the angles always equals 180 degrees exactly. In non-Euclidean geometry it can exceed 180 degrees.
In plane Euclidean geometry there are 3 angles in any triangle that add up to 180 degrees and if given 2 angles the sum of the 2 angles minus 180 will give the measure of the 3rd angle
Sum of interior angles of a triangle total 180 degrees