Saccheri quadrilateral: Facts, Discussion Forum, and Encyclopedia Article

Saccheri quadrilateral

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	Saccheri quadrilateral
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	Topics Saccheri quadrilateral Topic Home A Saccheri quadrilateral, or Khayyam-Saccheri quadrilateral, is a four-sided figure. It has a base, AB, two equal legs standing at right angles to it, AC and BD, and non-obtuse angles at the summit, CD. It is composed entirely of straight lines. It was discovered by Omar KhayyamOmar Khayyám Omar Khayym, Persian ??? ????, was a Persian poet, mathematician and astronomer.... and is named after Giovanni Gerolamo Saccheri. A rectangleRectangle In geometry, a rectangle is defined as a quadrilateral where all four of its angles are right angles.... is a special case of a Saccheri quadrilateral in which all four angles are right angleRight angle Summary In geometry and trigonometry, a right angle is an angle of 90 degrees, corresponding to a quarter turn .... s. A Saccheri quadrilateral is composed of two equal Lambert quadrilateralLambert quadrilateral A Lambert quadrilateral is a four sided figure.... s.