Identify the congruent relationships with a checkmark A. Base angles of an isosceles triangle ___

B. Corresponding angles formed by a transversal intersecting parallel lines ___

C. Diagonals of a rectangle ___

D. Diagonals of an isosceles trapezoid ___

E. Vertical angles ___

F. Linear Pairs ___

G. Alternate interior angles formed by a transversal intersecting parallel lines ___

H. Opposite angles of a parallelogram ___

I. Consecutive angles of a parallelogram __