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Geometry: Three Famous Triangles
Three Famous TrianglesGeometryOpening Doors with Similar TrianglesThe Pythagorean TheoremParallel Segments and Segment ProportionsThree Famous Triangles Now that you have developed the skills…Geometry: When Is a Parallelogram a Rectangle?
When Is a Parallelogram a Rectangle?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…Geometry: When Is a Parallelogram a Rhombus?
When Is a Parallelogram a Rhombus?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…Geometry: When Is a Parallelogram a Square?
When Is a Parallelogram a Square?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…Geometry: When Is a Quadrilateral a Parallelogram?
When Is a Quadrilateral a Parallelogram?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…pyramid, in geometry
(Encyclopedia) CE5 Pyramid pyramid, in geometry, solid figure bounded by a polygon (the base, or directrix) and the surface generated by a moving line (the generator) passing through a fixed…Poncelet, Jean Victor
(Encyclopedia) Poncelet, Jean VictorPoncelet, Jean VictorzhäNˈ vēktôrˈ pôNslāˈ [key], 1788–1867, French mathematician and army engineer. He taught at the school of mechanics at Metz and at the…Pappus
(Encyclopedia) PappusPappuspăpˈəs [key], fl. c.300, Greek mathematician of Alexandria. He recorded and enlarged on the results of his predecessors, including Euclid and Apollonius of Perga, in his…Thoth
(Encyclopedia) ThothThoththŏth, tōt [key], in Egyptian religion, god of wisdom and magic. A patron of learning and of the arts, he was credited with many inventions, including writing, geometry, and…Briggs, Henry
(Encyclopedia) Briggs, Henry, 1561–1630, English mathematician. He was the first professor of geometry at Gresham College, London (1596–1619), and Savilian professor of astronomy at Oxford (from 1619…Trending
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