Angle Theorem 5

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

Three Ways

Three Ways

Can you get to the target number by multiplying together four different one digit numbers? Can you do it in three different ways? There are nine levels to this online challenge and a virtual Transum Trophy available for each level.

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Area and Perimeter of a Parallelogram

Area and Perimeter of a Parallelogram

Many different ways to practise your skills finding the areas and perimeters of parallelograms. So far this activity has been accessed 19 times and 11 Transum Trophies have been awarded for completing it.

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