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This website might be helpful to see the application of the geometry knowledge about the drawing of the circle.

Fun math practice! Improve your skills with free time-limited problems in 'Identify complementary, supplementary, vertical, adjacent, and congruent angles' and thousands of other practice lessons.

this is very interesting video...

I thing music is very effective tool in geometry. The knowledge become more strong when someone teaches by using music.

10 minute video of an overview of a project-based learning in a high school. 

Interactive lesson plans, activities, and so on...