3. Vertically opposite angles are...
For this activity, we will be dragging the pink points around to see what happens to the angles α, β, γ and δ as well as what we can observe.
Questions
What do you notice about the angles opposite one another?
What do you notice about the sum of all four angles?
Does the length of the line matter? Why / why not?
Will this rule hold true if one of the lines was not straight? Why / why not?
*Quickfire Challenge!*
Let us hide one of the angles and see if you can work out the missing angle!