# ray.c.carpenter

• ### Crossings

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ray.c.carpenter

• ### Equilateral triangle from a circle

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ray.c.carpenter

• ### Circle Theorems and other geometry

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ray.c.carpenter

• ### Alternative equilateral triangle diagram 2b

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ray.c.carpenter

• ### Alternative equilateral triangle diagram 2a

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ray.c.carpenter

• ### Equilateral triangle from a rectangle - diagram 1b

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ray.c.carpenter

• ### Equilateral triangle from a rectangle - diagram 1a

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ray.c.carpenter

• ### van Schooten's theorem extended diagram for proof

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ray.c.carpenter

• ### van Schooten's theorem start point

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ray.c.carpenter

• ### Dynamic Pythagoras drawing for proof

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ray.c.carpenter

• ### Static Pythagoras drawing for proof

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ray.c.carpenter

• ### Perpendicular from centre to chord

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ray.c.carpenter

• ### Alternate segment

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ray.c.carpenter

• ### Angle in semicircle

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ray.c.carpenter

• ### Angle at centre and circumference

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ray.c.carpenter

• ### Angle between tangent and radius

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ray.c.carpenter

• ### Tangents from a point

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ray.c.carpenter

• ### Opposite angles in a cyclic quadrilateral

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ray.c.carpenter

• ### Angles in the same segment

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ray.c.carpenter