Δabc is located at a (2, 3), b (4, 4), and c (6, 3). zackery says that δabc is an isosceles triangle, while verna says that it is a right triangle. who is correct? zackery, because segment bc ≅ segment ac zackery, because segment ab ≅ segment bc verna, because segment bc is perpendicular to segment ac verna, because segment ab is perpendicular to segment bc