Angle Theorem 9

Theorem

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

The following animation was created and is shared by Anthony C.M. OR under a License: CC-BY-SA.

Main Angle Theorems page.

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

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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.

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Example or Non-Example?

Example or Non-Example?

Drag the cards to show whether they are examples or non-examples of triangles, polygons, expressions, like terms, bearings etc. So far this activity has been accessed 159 times and 13 people have earned a Transum Trophy for completing it.

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