Please answer soon. (35 Points)

Answer: Complementary
Step-by-step explanation:
Complementary angles add up to equal 90 degrees. Since the sum of the angle measures of angles ABC and DBC is 90 degrees, the two angles are complementary.
I hope this helps!
Answer:
A. complementary angles
Step-by-step explanation:
A complementary angle is an angle where the sum of the two angles is 90°.
The sum of angles ABC and DBC is 90°. So It's a complementary angle.