9-Point Circle Action (Part 5)
Here's another cool property about 6 of the points of any triangle's 9-Point Circle!
For previous 9-Point Circle illustrations and properties, refer to
9-Point Circle Action (Part 1)
9-Point Circle Action (Part 2)
9-Point Circle Action (Part 3A)
9-Point Circle Action (Part 3B)
9-Point Circle Action (Part 4)
Questions:
1) Which 6 points of a triangle's 9-point circle serve as vertices of these rectangles?
2) How can you formally prove what this applet informally illustrates?