Final answer:
Vertical angles and complementary angles can have equal degrees.
Step-by-step explanation:
Two types of angles can have equal degrees: vertical angles and complementary angles.
Vertical angles are formed when two lines intersect. Vertical angles are opposite each other and have equal measures. For example, if one angle measures 60 degrees, then its vertical angle will also measure 60 degrees.
Complementary angles are two angles whose sum is 90 degrees. If two angles are complementary, then their degree measures will add up to 90. For example, one angle measures 40 degrees, the other angle will measure 50 degrees.