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GoGeometry Action 87!

Author:
Tim Brzezinski
Topic:
Circle, Geometric Mean
Creation of this applet was inspired by a tweet from Antonio Gutierrez (GoGeometry.) . Feel free to move the white vertices of the right triangle anywhere you'd like. How can we formally prove what this applet informally illustrates?

Quick Demo: 1:24 - END (BGM: Andy Hunter)

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