If a | | b and c | | d , which pair of angles are congruent?

1 and 16

5 and 8

9 and 11

12 and 13

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle