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- Get an overstock coupon 20% off in 2015
- Find list of directory sites to use.
- emergencyessay.com

This website offers motivational and interactive class activities to learn more about 3D shapes. It also shows how to calculate surface area and volume, as well as other mathematical properties about the 3D shapes. Specific topics include surface area and volume, platonic solids, Euler's Theorem, and several others. The Test Your Skills link provides an interactive quiz complete with photos, illustrations, and animations. The About This Interactive link provides standards, goals, lesson ideas, and more.

Practice describing the angle rotating around a circle ninja style

GeoGebra is a free and multi-platform dynamic mathematics software for schools that joins geometry, algebra and calculus. It received several international awards including the European and German educational software awards. It is open sourced, can be web-based or installed locally. Very similar to Geometer's sketchpad.

Geometry Solutions is a sophisticated calculator that calculates the perimeter, lateral and surface areas, and volume of plane and solid geometric figures. Practice using these formulas to improve your geometry skills!

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