Pascal's theorem

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Notion

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Science and technology

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What Wikipedia says

In projective geometry, Pascal's theorem (also known as the hexagrammum mysticum theorem, Latin for mystical hexagram) states that if six arbitrary points are chosen on a conic (which may be an ellipse, parabola or hyperbola in an appropriate affine plane) and joined by line segments in any order to form a hexagon, then the three pairs of opposite sides of the hexagon (extended if necessary) meet at three points which lie on a straight line, called the Pascal line of the hexagon.

Excerpt from the Wikipedia article “Pascal's theorem”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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