Perpendicular Bisector of Chord (Circle Properties)
Use the play, pause, step by step forward or backward buttons at the bottom of this applet to go through this activity.[br]Updated version at [url=https://www.geogebra.org/material/show/id/rSsUe7YM]https://www.geogebra.org/material/show/id/rSsUe7YM[/url]
Use the play, pause, step by step forward or backward buttons at the bottom of this applet to go through this activity.[br][br]At the end of this activity, what is the conclusion that you can make about this question :[br]"Perpendicular bisector of any chord on a circle will always pass through which point on this circle?"
Angles in the Same Segment
This applet demonstrates the theorem of angles in the same segment.[br]You can use the slider to vary angle BCA, or drag points B, C, or D [br]and observe that angle BCA is always = angle BDA
Angles in the Same Segment
Angle between line AB and radius of the circle (Tangent Radius)
Basic Proofs In Plane Geometry -Example 6 (Scaffolded)
Use this activity to aid your learning of basic proofs in plane geometry (up to and including angle properties of polygons and circles) [br]Submit your proofs with step by step justifications on pen and paper to your instructor.
Circle theorems
Demonstration of circle theorems
Area of Circles
What is the area of a circle? Explore with the following applet.
Anthony Or, GeoGebra Institute of Hong Kong.