# Formula For Parallelogram

Area of Polygons Worksheets Free | ... parallelograms irregular polygons and area download areas of triangles

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Derive the formula for a parallelogram using only the formula for the area of a rectangle. It should make more sense for the student!

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### Area and Perimeter

Formula for Area of a Triangle

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Applet contains a modifiable parallelogram that students can transform into another familiar figure (rectangle.) Since the area of the rectangle is the same as the area of the original parallelogram, students can then more readily see that the formula for the area of any parallelogram is Area of a Parallelogram = (Base Area)(True Height).

Rearrange a trapezoid into a thin parallelogram to understand the trapezoid area formula.

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Developing Area Formulas for Parallelograms

### The Area of a Parallelogram - A Discovery

This zipped folder contains the description of a lesson that will engage students in discovering the formula for the area of a parallelogram. The f...

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NCTM Illuminations: Discovering the Area Formula for Circles. Circumference, pi, radius, diameter.

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