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Theorem 4: angle at centre twice angle on circumference
Author:
Graham Burnby-Crouch
GeoGebra
New Resources
Roman Numerals Bingo
Lorenz Attractor: Multiple particles
Exploring Simple Loci 探究簡單軌跡
Droste effect draft
Rings of circles
Discover Resources
Practice with steps: Solving Log Eqns (Product/Quotient law)
Central Angles, Inscribed Angles, and their Intercepted Arcs
Equation of a Circle
Measurement - Area of a Sector of a Circle
Activity 3
Discover Topics
Circle
Right Triangles
Line Segment
Sphere
Constructions