Parts of a Circle
Please wait for the applet to load. It may take several seconds.[br]Drag points A or B.[br]To see the part(s) of a circle, click on the check box(es).[br]To refresh the screen, click on the refresh icon on the top-right-hand corner of the applet.
Angles at centre and circumference
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points P, A, or B.[br]To refresh, click on the refresh icon on the top-right-hand corner.
Angles in a semi-circle
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points A or P.[br]To refresh, click on the refresh icon on the top-right-hand corner.
Angles in the same segment
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points P, Q, A, or B.[br]To refresh, click on the refresh icon on the top-right-hand corner.
Opposite angles in Cyclic Quad
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points P, Q, A, or B.[br]To refresh, click on the refresh icon on the top-right-hand corner.
Secants vs Tangents
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points P, Q, A, or B.[br]To refresh, click on the refresh icon on the top-right-hand corner.
Line of symmetry for a triangle
Please wait for the applet to load. It may take several seconds.[br]Select or de-select by clicking on the check boxes.[br]Drag points C, A or B.[br]To refresh, click on the refresh icon on the top-right-hand corner.