Simple Lie group
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What links here
Spherical geometry
Gaussian curvature
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Synthetic geometry
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Euclid's Elements
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Erlangen program
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Hyperbolic geometry
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Elliptic geometry
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Wallace–Bolyai–Gerwien theorem
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Geometrization conjecture
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Trapezoid
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Heron's formula
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Division by zero
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List of unsolved problems in mathematics
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List of geometers
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Hilbert's third problem
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Milutin Milanković
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Celestial navigation
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Stereographic projection
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Shape of the universe
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Kite (geometry)
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Rectangle
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2
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Triangle inequality
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Great circle
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Ulugh Beg
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N-sphere
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Congruence (geometry)
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Triangle
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M. C. Escher
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Length
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History of mathematics
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Euclid
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Differential geometry
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Centimetre–gram–second system of units
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Carl Friedrich Gauss
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