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CCI - AMSI

CIRCLE GEOMETRYThe Improving Mathematics Education in Schools (TIMES) Project MEASUREMENT AND GEOMETRY Module 26 CCICIRLEA guide for teachers - Years 9 10 June 2011 Circle Geometry(Measurement and Geometry: Module 26)For teachers of Primary and Secondary Mathematics510 Cover design, Layout design and Typesetting by Claire HoThe Improving Mathematics Education in Schools (TIMES) Project 2009 2011 was funded by the Australian Government Department of Education, Employment and Workplace views expressed here are those of the author and do not necessarily represent the views of the Australian Government Department of Education, Employment and Workplace Relations.

reflection in the line AOB reflects the circle onto itself. Thus every diameter of the circle is an axis of symmetry. As a result of these symmetries, any point P on a circle can be moved to any other point Q on the circle. This can be done by a rotation through the angle = /POQ about the centre. It can also be done by a reflection in the diameter

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