Circumcircle
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What links here
Heron's formula
Indian mathematics
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Semiperimeter
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Heronian triangle
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Distance geometry
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Spherical trigonometry
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Qin Jiushao
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Pedoe's inequality
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Descartes' theorem
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Isosceles trapezoid
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Isosceles triangle
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Brahmagupta
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Synthetic geometry
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Trapezoid
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Cyclic quadrilateral
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Brahmagupta's formula
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Altitude (triangle)
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Incircle and excircles
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Heron (disambiguation)
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Parallelogram
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Law of sines
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Standard ML
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Hero of Alexandria
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Song dynasty
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Triangle inequality
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Tetrahedron
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Triangle
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Trigonometric functions
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Pythagorean triple
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History of mathematics
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History of geometry
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Fortran
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Euclidean geometry
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Archimedes
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Area
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Hero's formula
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Heron's Formula
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Hero's Formula
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