Circle Theorem 1

Theorem

Below is an interactive version of the diagram 'Powered By GeoGebra'. Drag the points to see how the diagram responds.

Main Circle Theorems page.

When you think that the circle theorems are understood head for the Circle Theorems Exercise.

Featured Activity

Jugs

Jugs

The classic problem of using two unmarked jugs to measure exactly a given quantity. The Transum version is interactive and awards a virtual trophy for each of the levels completed.

This is a Shine+Write visual aid designed to be projected onto a whiteboard for whole class exposition.

You can find other popular visual aids on our Shine+Write page.

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Truculent

Truculent

Can you arrange the seven counters on the grid despite their truculent behaviour? So far this activity has been accessed 20995 times and 129 people have earned a Transum Trophy for completing it.

Apple

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