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

Four Colour Theorem

Four Colour Theorem

This mathematical activity involves colouring in! That makes a change. Using the paint bucket tool can you flood fill the regions so that no two adjacent regions are the same colour?

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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Rounding SF

Rounding SF

A self marking exercise requiring students to round numbers to a given number of significant figures. So far this activity has been accessed 31650 times and 4400 people have earned a Transum Trophy for completing it.

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