**Area of a
Trapezoid 2.**

The second derivation of the area of a triangle above can be modified to show that the area of a trapezoid is the average of the bases times the height.

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Rectangle : Parallelogram : Triangle
1. : Triangle
2. : Trapezoid 1.
: Trapezoid
2.
: Circle
1. : Circle
2.

Animations by
Bettina Richmond and Tom Richmond.

Tom.Richmond@wku.edu

Updated May 22, 2008.