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[Label1]
Caption=If the circle and the line will be replaced by other curves in this construction,~~then the resulting curve will be called the cissoidal curve for given curves.~~~~Construct the cissoidal curves for given curves:~~two parallel lines, ~~two intersecting lines,~~two circles with common point, etc.~~Explore the properties of the resulting cissoidal curve in DG environment.
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Caption=An ancient Greek mathematician Diocleses applied ~~cissoid for solving the doubling cube problem. ~~~~Using the cissoid, find the side of a cube with  ~~doubled volume by the side of the initial cube.
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Caption=Locus of such points M', so that AM' = ME, ~~where point D, the line, that passes through points D and Е ~~perpendicular to circle, and  point M is on the circle.
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