Answer:1. Angles 21 and 22 add up to 90° →✅ Complementary Angles2. Angles 23 and 24 are opposite when two lines cross →✅ Vertical Angles3. Angles 25 and 26 form a straight line →✅ Linear Pair4. Angles 27 and 28 are side by side, sharing one ray →✅ Adjacent Angles5. Angles 29 and 10 add up to 180° →✅ Supplementary AnglesStep-by-step explanation: