Mathematics

Home > Mathematics > Extension 1 > The Geometry of the Circle

Assessment

A set of HSC past papers and advice on the examination
Hints and answers from past exam papers (formerly '3 Unit') and past articles from Sydney Morning Herald advice to students.

Angles at circumference & centre
An interactive investigation to determine the relationship between an inscribed angle and a central angle (applet).
Angles on same arc
A single interactive investigation to visualise the relationship between inscribed angles, an angle in the alternate segment and opposite angles in a cyclic quadrilateral (applet).
Angles on same arc (flashlight application)
An interactive investigation using the principle of a flashlight to visualise the relationship between two arcs given that the inscribed angles are equal (applet).