The applet below dynamically illustrates [b][color=#9900ff]Viviani's Theorem.[/color][/b] [br][br]Be sure to move the [b][color=#666666]GRAY POINT[/color][/b] around. You can also, if you choose, alter the size of this special triangle by moving either one of its vertices.[br][br]After interacting with the applet for a few minutes, please answer the questions that follow.
Without looking it up on another tab in your internet browser, describe Viviani's Theorem in your own words.
[b][color=#0000ff]How can we formally prove the phenomenon dynamically illustrated here? [/color][/b]