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Director circle – Circle formed by all 90° crossings of tangents of an ellipse or hyperbola; Fermat–Apollonius circle – Circle formed by all 90° crossings of tangents of an ellipse or hyperbola; Ford circle – Rational circle tangent to the real line; Fuhrmann circle
Circular reasoning (Latin: circulus in probando, "circle in proving"; [1] also known as circular logic) is a logical fallacy in which the reasoner begins with what they are trying to end with. [2] Circular reasoning is not a formal logical fallacy, but a pragmatic defect in an argument whereby the premises are just as much in need of proof or ...
A circle bounds a region of the plane called a disc. The circle has been known since before the beginning of recorded history. Natural circles are common, such as the full moon or a slice of round fruit. The circle is the basis for the wheel, which, with related inventions such as gears, makes much of modern
Malfatti's problem is to carve three cylinders from a triangular block of marble, using as much of the marble as possible. In 1803, Gian Francesco Malfatti conjectured that the solution would be obtained by inscribing three mutually tangent circles into the triangle (a problem that had previously been considered by Japanese mathematician Ajima Naonobu); these circles are now known as the ...
Within video games, the magic circle concept is often used in the game's introductory screens to help establish that the player should prepare to embrace the game's world; some examples include the opening of Super Mario Bros. 3, where the game starts with the lifting of a stage curtain that is a framing device for the game, and in Hearthstone ...
One could say that the promise of a better life has somehow turned into urban hell. To show just how really bad things are getting, Bored Panda compiled a list of the worst consequences caused by ...
Examples of cyclic quadrilaterals. In geometry, a cyclic quadrilateral or inscribed quadrilateral is a quadrilateral (four-sided polygon) whose vertices all lie on a single circle, making the sides chords of the circle. This circle is called the circumcircle or circumscribed circle, and the vertices are said to be concyclic.
Ahead, we’ve rounded up 50 holy grail hyperbole examples — some are as sweet as sugar, and some will make you laugh out loud. 50 common hyperbole examples I’m so hungry, I could eat a horse.