Circle Properties Activity 4

Instructions:[br]In the diagram, [i]O[/i] is the centre of the circle and [i]PR[/i] is the diameter. Angle [i]PQR[/i] is subtended by the diameter [i]PR[/i].[br]Move point [i]Q[/i] to a few different locations.[br]What do you observe?

What can you conclude?

Angle in a sector = 90 degrees Angle in a segment = 90 degrees Angle in a circle = 90 degrees Angle in a semi-circle = 90 degrees

Information: Circle Properties Activity 4