An angle is [color=#980000][b]inscribed[/b][/color] in a circle when it is created by chords and the vertex is on the circumference of the circle. [br][br]When the chords have endpoints on the diameter, it is [b][color=#9900ff]inscribed in a semicircle[/color].[/b][br][br]Angle APB is [color=#9900ff][b]inscribed in a semicircle[/b][/color].[br]You can drag point A to change the orientation of the semicircle.[br]
What do you notice about angle APB?
Does the measure of [math]\angle[/math]APB change when the circle is a different size?
An angle inscribed in a semi-circle ________