In this activity, we will learn how to calculate angles in a full rotation.
Sometimes we call these angles around a point.
We know that all angles around a point add together to make a total of 360°
For example, below we can see that one of the angles around a point is 240°
The other, a, is unknown.
We can subtract the known angle from 360° to find the value of a.
360 - 240 = 120
a = 120°
Let's try an example question together.
Example
Calculate the other angle around this point.
Answer
Angle = 360° - 300° = 60°
Let's have a go at some questions now.