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The formula for finding the area of a trapezoid (BrEng: trapezium) A = 1/2 x B1 x B2 x H.

B1 is the length of the top of the trapezoid, B2 is the length of the base of the trapezoid and H is the height.

www.mathgoodies.com/lessons/vol1/area_trapezoid.html

To find the

www.virtualnerd.com/pre-algebra/perimeter-area-volume/perimeter-and-area/area/trapezoid-area-formula

Then, use the

www.virtualnerd.com/pre-algebra/perimeter-area-volume/perimeter-and-area/area-formulas-examples/trapezoid-area-example

In this tutorial, you'll see how to identify those values and plug them into the

www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-trap-composite/v/area-of-a-trapezoid-1

www.mathopenref.com/trapezoidarea.html

where b1, b2 are the lengths of each base h is the altitude (height). Recall that
the bases are the two parallel sides of the

www.reference.com/math/area-trapezoid-a002ca81d6a17ae1

www.reference.com/math/formula-area-trapezoid-c8d005dbc5cb61b3

The

www.wikihow.com/Calculate-the-Area-of-a-Trapezoid

How to

keisan.casio.com/exec/system/1223273662

Calculates the