Angle Theorem 1

Theorem

Below is an interactive version of the diagram. Drag the points to see how the diagram responds.

Main Angle Theorems page.

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

Featured Activity

Triangle Solver

Triangle Solver

This simple calculator will work out the lengths of the sides and the size of the angles of any triangle given thee particular pieces of information.

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.

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

Telling The Time

Telling The Time

Practise reading a clock face and solving problems involving converting between units of time. So far this activity has been accessed 19704 times and 2662 people have earned a Transum Trophy for completing it.

Apple

©1997-2019 WWW.TRANSUM.ORG