- View more resources from this publisherSomething in Common
Angle at Centre, Angle on Arc Investigation
This investigation covers two circles theorems through one demonstration. The theorems are:
-
That the angles on the same arc forming a chord are equal
-
That the angle at the centre is twice the angle at the arc when drawn from the same chord
The initial demonstration involves cutting out angles and comparing them, then attention turns to a formal derivation of the results.
Show health and safety information
Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.