Did you know that one half turn is 180°? If the straight line or half turn is divided into two angles, and we know one of the angles, we can work out the other. Here 120° + 60° = 180° If we just had ...

👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value ...

When two lines intersect, the opposite (X) angles are equal. In the diagram above, the two green angles are equal and the two yellow angles are equal.

Here's the new description without the links: Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various ...