MrDoyle – Resources – GeoGebra

Circle Theorems
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Circle Theorem 8 - Alternate Segment Theorem
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Circle Theorem 6 - Tangents from a Point to a Circle
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Circle Theorem 7 - Tangents from a Point to a Circle II
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Circle Theorem 5 - Radius to a Tangent
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Circle Theorem 4 - Cyclic Quadrilateral
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Circle Theorem 2 - Angles in a Semicircle
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Circle Theorem 3 - Angles in the Same Segment
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Circle Theorem 1 - Angle at the Centre
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