180
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None because a scalene triangle has three unequal sides.
in plane geometry: all triangles have 3 angles which add up to 180 degrees, in a right triangle one of those 3 angles is 90 degrees.
the answer is................. 180 degrees180 :)The 3 angles inside a triangle add up to 180 degrees.
Three
A triangle has 3 interior angles that add up to 180 degrees and 3 exterior angles that add up to 360 degrees