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First you write the formula for the area of a trapezium, either from memory or
by looking it up. Then you substitute the lengths of the sides in your trapezium
for each of the appropriate terms in the formula.
Oh, all right:
Area = 1/2 (height) x (length of base-1 plus length of base-2).
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Earn +20 ptsQ: How do you work out the area of a trapizuim?
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Continue Learning about Geometry
What are the six quadrilaterals?
The six quadrilaterals are a square, a rectangle, a rhombus, a parallelogram, a trapizuim, and a kite.
How do you work out the area of a composite shape?
To work out the area of a composite shape, you will have to divide it into smaller figures.
How do you work out the area of trapezium?
Area = 1/2*(sum of the parallel sides)*height
How do you work out area of a square?
Length multiplied by width equals the area of a square or rectangle A=LxW Your answer will be in units squared.
If the width of the roof is 26ft what is the total area of the roof?
Another dimension is needed to work out the surface area of the roof.
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