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A = (1/2)*(a+b) * h

Where a and b are the lengths of the two parallel lines which form the base and top of the shape.

(Half the sum of the parallel sides) X (the distance between them)

That's how my maths teacher taught us. Here is the song, it goes to the tune of pop-goes-the-weasel.

Half the sum of the parallel sides

Times the distance between them

da da da da dadadada

POP goes the weasel!

Area of a trapezium or a trapezoid = 0.5*(sum of its parallel sides)*height

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9y ago

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Q: How do you find the area of a trapezium?
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