△abc has interior angles with measures x°, 100°, and 70°, and △def has interior angles with measures y°, 70°, and 50°. using the given information, which statement is true? the two triangles are not similar because y=60 so it is impossible to have three congruent angles. the two triangles are not similar because the interior angles are congruent but the side lengths are different. the two triangles are not similar because x≠y . the triangles are similar because they each have an interior angle with a measure 70°.