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What is non- euclidean geometry

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Final answer:

Non-Euclidean geometry is a type of geometry that deals with figures on a curved surface, unlike Euclidean geometry which is based on a flat space. It challenges Euclidean assuB) y = x^3 - 3x^2 + Cmptions, such as straight lines being the shortest distance between two points. This type of geometry is fundamental in the study and understanding of the universe's structure.

Step-by-step explanation:

Non-Euclidean geometry differs fundamentally from traditional Euclidean geometry. While Euclidean geometry assumes a 'flat' space, the non-Euclidean geometry is more about the geometry of curved space. It is primarily involved with the properties and relations of lines, angles, and figures on a curved surface, as seen on a sphere or hyperboloid.

For example, Euclidean postulates such as the shortest distance between two points would be a straight line, or that the total of angles in a triangle is 180 degrees, or that parallel lines never intersect, do not hold in non-Euclidean spaces. In non-Euclidean geometry, straight lines on a spherical surface, for instance, follow great circles and two such 'straight lines' can meet. It's a critical concept that allows us form a geometric representation of the universe and plays a key role in A Geometric Theory of Gravity.

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