January 15, 2012
3:00AM

30-60-90 Triangle Proof

When I took geometry, I loved proofs. Here's a fun one that deals with the ratios of the length of the sides of the ever-popular 30-60-90 triangle!

Note: This video is from the fantastic Khan Academy collection of educational videos.

DateSunday, January 15, 2012 at 3:00AM |
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