Question

If ∠ABC and ∠CBD are supplementary angles, then m∠ABC + m∠CBD = 180° represents the definition of Question 2 options: A) complementary angles. B) supplementary angles. C) triangle sum. D) congruence.

Answer 1

I would think it is supplementary.

Explanation:

If 2 angles equal 180 degrees, then they are supplementary.