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A collection of 43 proofs - some interactive - of the Pythagorean theorem.
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Pythagorean Theorem and its many proofs Theorem then claims that the sum of (the areas of) two small squares equals (the area of) the large one. In algebraic terms, a2 b2 c2 where c is the hypotenuse while a and b are the sides of the...A Visual Dictionary of Special Plane Curves with graphics.
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Xah: Visual Dictionary of Famous Plane Curves Curves subscribe to mailing list CD-ROM available! Famous Plane Curves Ancient curves Conic Sections Parabola Hyperbola Ellipse Cissoid of Diocles Conchoid of Nicomedes Quadratrix of Hippias Spirals Archimedean Spiral Equiangular Spiral Lituus Clothoid Cyclodal curves Epicycloid and Hypocycloid Astroid Deltoid...Discusses the perimeter of polygons, area of trapezoids, and challenge exercises. Available on CD only are the area of triangles and parallegrams, as well as practice exercises with solutions.
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The page you are trying to access has moved. Please wait a moment while we transfer you to the Correct Page....Discusses the differences between the different types of these straight sided figures. Also, explains the difference between regular and irregular shapes.
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Polygons A polygon is a closed plane figure bounded by straight line segments. The line segments are called the sides of the polygon, and the points at which they intersect are called vertices. A polygon has the same number of sides...Images of conics by Jill Britton.
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Occurrence of the Conics Mathematicians have a habit of studying, just for the fun of it, things that seem utterly useless; then centuries later their studies turn out to have enormous scientific value. There is no better example of this than the work done...