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Geometry

Online Course

Khan Academy

Price: Free
Website: http://www.khanacademy.org/math/geometry
Description: This is a first year, high-school level course on Geometry (which is based on Euclid's elements). It revisits many of the basic geometrical concepts studied in earlier courses, but addresses them with more mathematical rigor. There is strong focus on proving theorems and results from basic postulates.

The lesson includes the following topics:
- Introduction to Euclidian Geometry
- Angles and Intersecting Lines
- Congruence
-Similarity
- Right Angles and Trigonometry
- Perimeter , Area and Volume
- Circles
- Special Properties and parts of triangle
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