Area of a Pentagon
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This Demonstration shows that you can calculate the area of a pentagon or any other polygon using triangulation in combination with Heron's formula for the individual triangle areas.
Contributed by:Alvaro José Ibarra Rivas (Institución Educativa Santa Fe Santiago de Cali - Colombia) (March 2011)
Open content licensed under CC BY-NC-SA
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"Area of a Pentagon"
http://demonstrations.wolfram.com/AreaOfAPentagon/
Wolfram Demonstrations Project
Published: March 7 2011
Area of a Quadrilateral by Triangulation
Alvaro Jose Ibarra Rivas (Institucion Educativa Santa Fe, Santiago de Cali - Colombia)
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Signed Area of a Polygon
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The Area of a Square in a Square
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Area of a Hexagon Formed by the Vertices and Altitude Extensions of a Triangle
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Areas of Parallelograms and Trapezoids
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Ratio of Areas in a Square
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