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Notes - korpisworld
Notes - korpisworld

... By the end of this lesson, you should be able to 1. Solve problems by drawing diagrams. 2. Identify relationships between two lines. 3. Name angles formed by a pair of lines and a transversal. 4. Use the properties of parallel lines to determine angle measures. There are four types of lines you need ...
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First Semester Final Exam Review Part I: Proofs 1. Given: AB ≅ BC 2.

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EUCLIDEAN GEOMETRY Contents 1. Euclid`s geometry as a theory

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line of symmetry.

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1-2 - 1-5 (filled

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Duality (projective geometry)

In geometry a striking feature of projective planes is the symmetry of the roles played by points and lines in the definitions and theorems, and (plane) duality is the formalization of this concept. There are two approaches to the subject of duality, one through language (§ Principle of Duality) and the other a more functional approach through special mappings. These are completely equivalent and either treatment has as its starting point the axiomatic version of the geometries under consideration. In the functional approach there is a map between related geometries that is called a duality. Such a map can be constructed in many ways. The concept of plane duality readily extends to space duality and beyond that to duality in any finite-dimensional projective geometry.
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