[color=#000000]What (no-so-well-known) theorems about a triangle's 9-Point Circle are being dynamically illustrated here? [br](Feel free to move the the triangle's white vertices anywhere you'd like!) [/color]
[color=#000000][b]Theorem:[/b][/color][br][br]The [color=#1e84cc][b]center[/b][/color] of a triangle's [color=#38761d][b]9-Point Circle[/b][/color] is the [color=#1e84cc][b]midpoint[/b][/color] of the segment connecting the triangle's [color=#980000][b]circumcenter[/b][/color] and [color=#ff7700][b]orthocenter.[/b][/color][br][br]The radius of the triangle's [color=#980000][b]circumcircle[/b][/color] is double the[color=#38761d][b] radius of the triangle's 9-Point Circle. [/b][/color]