# for intersecting lines,vertically opposite angles are equal

- Author:
- Mathguru

- Topic:
- Angles, Straight Lines

We can see two lines AB and DC in black color. We can freely move these four points A, B, C and D. Angle AED(α) and angle BEC(β) are also written. Move the points A, B, C and D and observe how the angles get changed.

Questions to think about
1. Compare the values of α and β, what do we observe?
2. Is it possible to get α≠β?