Circle Theorems

Theorem 1 Theorem 2 Theorem 3
Theorem 4 Theorem 5 Theorem 6
Theorem 7 Theorem 8 Theorem 9

Click on a picture above for a large version and interactive model or show a theorem at Random.

Drag and Drop

Proof of Circle Theorems

Proof of Circle Theorems

Arrange the stages of the proofs for the standard circle theorems in the correct order with this drag-and-drop activity.

The short web address is:

Transum.org/go/?to=provetheorem

Game

Circle Theorem Pairs

Circle Theorem Pairs

A pairs game based around ten theorems about the angles made with chords, radii and tangents of circles.

The short web address is:

Transum.org/go/?to=circletheorempairs

For Printing

Circle Theorem Worksheet

Circle Theorem Worksheet

One page of ready-drawn circles for pupils to draw their own diagrams followed by two pages of questions.

The short web address is:

Transum.org/go/?to=circletheoremworksheet

Recommended

Circle Theorems Exercise

Circle Theorems Exercise

Show that you understand the circle theorems with this self marking exercise of traditional circle angle questions.

The short web address is:

Transum.org/go/?to=circleangles

Suggested

Intersecting Chords

Intersecting Chords

Apply the intersecting chords an secants theorems to calculate lengths of line segments

The short web address is:

Transum.org/go/?Num=1178

Featured Activity

Pentransum

Pentransum

Answer multiple choice questions about basic mathematical ideas. If you get a number of questions correct you will be invited to post a question of your own. The bank of questions grows larger every day.

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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Recently Updated

Arithmagons

Arithmagons

Find the missing numbers in these triangular, self-checking puzzles and discover the wonders of these fascinating structures. So far this activity has been accessed 69443 times and 9103 Transum Trophies have been awarded for completing it.

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