Area of a Trapezoid
Submitted by Isoscel on Sat, 01/05/2008 - 05:41.
The area of a trapezoid is the equal with half of the sum of the parallel sided multiplied by the height of the trapezoid.
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Proof:
Let us consider the two triangles: ABD and BDC. They have the the same height as the trapezoid.
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