Investigate, with and without digital technologies, angles at a point. Use results to find unknown angles (ACMMG141)

LO: To identify angles on a point

  • How to use a protractor to measure angles.


  • That all angles on a point add up to 360 degrees.


  • I can find the angles on a point.

Angles Around a Point

Angles around a point always adds up to 360 degrees!

We can use reasoning to help solve angle around the point questions. Since we know that angles around a point has to add up to 360 degrees, if 240 is taken up from 1 section then we can subtract 240 from 360 which will give me the remaining piece.

360 – 240 = 120

In this case x = 120 degrees.

Teaching Ideas

Angles Around a Point Videos

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