Which set of angles could NOT be the measure of the interior angles of a triangle?
HINT - All angles must add up to equal 180 degrees
90°, 50°, 40°.
Because if you add them up:
90° + 50° + 40° = 180°
These angles could be the measures of the interior angles of a triangle.
Any set of angles that add up to more or less than 180 degrees could not be the measure of the interior angles of a triangle.