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[Audio] EUCLID 325 BC- 265 BC. . . .00. EUCLID. 325 BC-265 BC.

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[Audio] The Life Of Euclid Euclid was born in Tyre or Megara in about 325 BC and died in Alexandria in about 265 BC. He was the most prominent mathematician of antiquity, best known for his work The Elements..

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[Audio] The Elements The Elements are divided into 13 books. The first 6 are on geometry; 7, 8 and 9 are on number theory; and book number 10 is on Eudoxus' theory of irrational numbers. Books 11, 12, and 13 all concern solid geometry, and end with a discussion of the properties of the five regular polyhedrons and proof that there can only be these five..

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[Audio] Axioms And Postulates • In mathematics or logic, an axiom is an unprovable rule or first principle accepted as true because it is self-evident or particularly useful. Example: If equals are added to equals, the wholes are equal. If equals are subtracted from equals, the remainders are equal. • A postulate is essentially a theorem, which may have proof. Example: Through any two points there is exactly one line. Through any 3 non-collinear points there is exactly one plane. • Euclid has formulated 7 axioms and 5 postulates..

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[Audio] Other Important Works In addition to The Elements, Euclid has also made notable contributions such as: • Data deals with the nature and implications of "given" information in geometrical problems. • On Divisions of Figures concerns with the division of geometrical figures into two or more equal parts or into parts in given ratio. • Catotropics and Optics which concerns the mathematical theory of mirrors, particularly the images formed in plane and spherical concave mirrors. He has also played in a part in Conics but that work is currently lost..

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[Audio] THANK YOU. . . . THANK YOU. . .