Kris claims that the two figures must be congruent. Two triangles have angles 100 degrees, 50 degrees, and 30 degrees.

Which statement best describes his claim?
He is correct because both figures are triangles.
He is correct because the measures of the angles are the same in both figures.
He is incorrect because the triangles are not oriented the same way.
He is incorrect because the lengths of the corresponding sides of the figures are unknown.