Angles on a straight line and around a point.
1. What do you notice when you move the slider to make the pink angle 90°?
2. When the pink angle is below 90°, what do you notice about the blue angle?
3. Can you write a generalisation that would work every time, for calculating
the blue and pink angles?
1. What do you notice when you move the slider to make the pink angle 180°?
2. When the pink angle is below 180°, what do you notice about the blue angle?
3. Can you write a generalisation that would work every time, for calculating
the blue and pink angles?