Alberta Math 9

GeoGebra Constructions Organized by Strand

Shape and Space (Measurement)

	Circles - Central and Inscribed Angles Show that inscribed angles are half the measure of the central angle subtended by the same arc
	Circles - Chord Perpendicular Bisector Show that the perpendicular that bisects a chord goes through the centre of the circle
	Circles - Inscribed Angles Show that inscribed angles subtended by the same arc are equal
	Circles - Tangent at Radius Show that a tangent to a circle is perpendicular to the radius at the point of tangency