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# Who invented geometry?

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The inventor of geometry was Euclid, and his nickname was The Father of Geometry. Euclid obtained his education at Plato's Academy in Athens, Greece and then moved to Alexandria.

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Euclid is the author of "The Elements." This series of 13 books covers number theory, irrational numbers, plane geometry and solid geometry. The series once sold more copies than any other book, other than the Bible. Euclid proved that a person can draw a straight line between any two points and that all right angles are equal, among other theories. He also organized geometric ideas. Euclid wrote other works as well, including "Phaenomena" and "Data."

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## Related Questions

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The converse in geometry applies to a conditional statement. In a conditional statement, the words "if" and "then" are used to show assumptions and conclusions that are to be arrived at using logical reasoning. This is often used in theorems and problems involving proofs in geometry.

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A counterexample, in geometry as in other areas of mathematics and logic, is an example that one uses to prove that a particular statement is false. A simple example from primary mathematics uses the statement "the inverse of a number is never an integer," and its counterexample would be 1/4. The inverse of 1/4 is 4, which is an integer. For geometry, finding counterexamples involves a few more calculations.

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In geometry, converse, inverse and contrapositive are conditional statements consisting of a hypothesis and a conclusion. These statements are also known as “if-then statements.” The hypothesis part of a conditional statement is the “if," and the “then” part is the conclusion. The conclusion is the result of a hypothesis.