There’s the ‘official’ formula 1/2(bxd) … or you could just create a rectangle and halve it.

Quick reminder revision videos

There’s the ‘official’ formula 1/2(bxd) … or you could just create a rectangle and halve it.

The 10 most common maths exam mistakes ... and how to avoid them.

The 10 most common maths exam mistakes ... and how to avoid them.

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