Question

AB is parallel to CD, Find X. Give step by step explanation.​

Answer 1

1) Draw a line (lets say OE) which is parallel to AB and CD .

2) ∠BOA+∠AOE= 180° (co interior angles)

3) ∠AOE= 40°

4)∠DCO+∠COE=180° (co interior angles)

5)∠COE=55°

6)∠AOE+∠COE= x (95°)