Decagon
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What links here
Straightedge and compass construction
Golden angle
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Euclid's Elements
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Projective geometry
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Golden rectangle
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11 (number)
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Squaring the circle
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Cubic equation
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Numerical integration
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Stereographic projection
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Angle trisection
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Similarity (geometry)
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Pi
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Number
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Mathematics
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Golden ratio
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History of geometry
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Ellipse
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Constructible number
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Ruler and compass
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Ruler and compasses
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Straightedge and compass
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Straightedge and compasses
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Ruler-and-compass constructions
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Straightedge and dividers
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