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According to Euclidean geometry, how many lines can pass through a point and be parallel to a given line?
According to Euclidean geometry, how many lines can pass through a point and be parallel to a given line?
According to Lobachevsky, how many lines can pass through a point and be parallel to a given line?
According to Lobachevsky, how many lines can pass through a point and be parallel to a given line?
According to G.F.B. Riemann, how many lines can pass through a point and be parallel to a given line?
According to G.F.B. Riemann, how many lines can pass through a point and be parallel to a given line?
According to Euclidean geometry, how many lines can pass through a point and be parallel to a given line?
According to Euclidean geometry, how many lines can pass through a point and be parallel to a given line?
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In hyperbolic geometry, how many distinct lines can pass through a point and be parallel to a given line?
In hyperbolic geometry, how many distinct lines can pass through a point and be parallel to a given line?
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What is the sum of the angles of a triangle in G.F.B. Riemann's non-Euclidean geometry?
What is the sum of the angles of a triangle in G.F.B. Riemann's non-Euclidean geometry?
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According to Euclidean geometry, how many lines pass through a point and are in the same plane as a given line without intersecting it?
According to Euclidean geometry, how many lines pass through a point and are in the same plane as a given line without intersecting it?
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In spherical geometry, what are lines defined as?
In spherical geometry, what are lines defined as?
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What is the defining characteristic of absolute geometry according to the text?
What is the defining characteristic of absolute geometry according to the text?
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