Pons Asinorum (Latin for "Bridge of Asses") is the name given to Euclid's fifth proposition in Book 1 of his Elements of geometry:
In isosceles triangles the angles at the base equal one another, and, if the equal straight lines are produced further, then the angles under the base equal one another. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Euclid ( Greek:.) fl 300 BC also known as Euclid of Alexandria, is often referred to as the Father of Geometry Euclid's Elements ( Greek:) is a mathematical and geometric Treatise consisting of 13 books written by the Greek Geometry ( Greek γεωμετρία; geo = earth metria = measure is a part of Mathematics concerned with questions of size shape and relative position A triangle is one of the basic Shapes of Geometry: a Polygon with three corners or vertices and three sides or edges which are Line In Geometry and Trigonometry, an angle (in full plane angle) is the figure formed by two rays sharing a common Endpoint, called
Pappus provided the shortest proof of the first part, that if the triangle is ABC with AB being the same length as AC, then comparing it with the triangle ACB (the mirror image of triangle ABC) will show that two sides and the included angle at A of one are equal to the corresponding parts of the other, so by the fourth proposition (on congruent triangles) the angles at B and C are equal. Pappus of Alexandria ( Greek) (c 290 &ndash c 350 was one of the last great Greek mathematicians of antiquity known for his Synagoge or Collection In Mathematics, a proof is a convincing demonstration (within the accepted standards of the field that some Mathematical statement is necessarily true "Mirror Image" is an episode of the Television series The Twilight Zone. Euclid's proof was longer and involved the construction of additional triangles.
It takes its name as the first real test in the Elements of the intelligence of the reader and as a bridge to the harder propositions that followed. Its location in that text is much more advanced than where the problem is posed in present-day geometry textbooks for high-school students.
Pons Asinorum is also used to describe a particular configuration of a Rubik's Cube. The Rubik's Cube is a Mechanical puzzle invented in 1974 by Hungarian Sculptor and Professor of Architecture Ernő Rubik
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