Angle 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.

When you think that the angle theorems are understood head for an Angle Activity.

Featured Activity

Lemon Law

Lemon Law

A fascinating digit changing challenge. Change the numbers on the apples so that the number on the lemon is the given total. Can you figure out, by understanding place value, how this works?

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.

Find out about the latests developments on this website by signing up for a Transum Subscription. You will receive a regular newsletter and have access to the answers to most of the puzzles and activities on this site.

Idan Tal, Twitter

Tuesday, April 16, 2019

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

Recently Updated

Snail Race

Snail Race

A race between 12 snails. Which snail is most likely to win? This is the students' version of the race simulation. So far this activity has been accessed 206940 times and 1127 Transum Trophies have been awarded for completing it.

Transum.org is a proud supporter of the kidSAFE Seal Program