Describe what you see in your own words. Write your observation(s) as a conditional (if-then) statement.[br]Be sure to use the terms [i]intercept(s)[/i] and [b][i][color=#1e84cc]semicircle[/color][/i][/b] in your description.
[b]Thales' Theorem:[br][/b][br]If an [color=#1e84cc][b]inscribed angle[/b][/color] intercepts a [color=#1e84cc][b]semicircle[/b][/color], then that [color=#1e84cc][b]inscribed angle[/b][/color] is a [color=#1e84cc][b]right angle[/b][/color]. [br](Notice how this [color=#1e84cc][b]angle's measure[/b][/color] is equal to the measure of its supplement!)