Parts of Circles

This applet shows the names, meanings and relationships of different parts of a circle

Author and programmer: Ron Barrow

UK Years 5-8, KS2, KS3, Shape and Space


Instructions below    See also:    2 Circle Theorems   2 More Circle Theorems   Alternate Segment Theorem   Circles and Tangents   Circles and Isosceles Triangles

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How to Use this Applet

This applet is designed to inform you of the words used to describe the different parts of a circle. Checking the boxes on the right will display the circle parts. On the circle you can move the three points around by clicking them and dragging them with your mouse. Investigate by playing around, and learn the meanings of these important words.