9. Which angles have the same measure as 21? A. 2g, Zf, and zo C. 2g. Zi, and <f B. Zg, Zv, and Zt D. Zg, Ze, and <t 10. Zv and it and Zg are alternate interior angles, what conclusion can you make in these two pairs of angles? A. The two pairs of angles are congruent. B. The two pairs of angles are supplementary, C. The two angles are vertical. D. The two angles are adjacent.