Area and Perimeter of a Triangle, Rectangle, Parallelogram, Trapezoid and Circle
By Deb Russell, About.com Guide
Surface Area and Perimeter of a Trapezoid
Surface Area and Perimeter: Trapezoid
D. Russell
See next (below) for triangle, rectangle, parallelogram and circle.
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- Surface Area and Perimeter of a Rectangle
- Area and Perimeter of a Parallelogram
- Area and Perimeter of a Circle
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