 Ask Dr. Math FAQ  Math Forum
Frequently asked questions from the archives of the Math Forum's question and answer service for K12 math students and their teachers, with classic problems, formulas, and other recommended math sites.
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 Formulas  Math Forum; Ask Dr. Math FAQ
Formulas for: Defining Geometric Figures (plane and solid figures, and a note on dimensions); Geometric Formulas (two and threedimensional figures: perimeter, area, volume, etc.); Analytic Geometry Formulas (one, two, and three dimensions: points, directions, lines, triangles, polygons, conic sections, general quadratic equations, spheres, etc.); Polar Coordinates (coordinates, points, directions, translations, rotations, lines, triangles, conic sections); Spherical Coordinates (the three coordinates (rho,theta,phi) of any point); Cylindrical Coordinates (the three coordinates (r,theta,z) of any point); and Trigonometry Formulas (definitions, bounds, identities, triangles, inverse functions, etc.)
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 Frequently Asked Questions in Mathematics  Alex LópezOrtiz and the Sci.Math FAQ Team
The sci.math FAQ. Nontrivial mathematical trivia from the newsgroup sci.math: a compilation of math history and knowledge of interest to most professional and amateur mathematicians, ranging from advanced topics such as Wiles' proposed proof to Fermat's Last Theorem to the list of Fields Medal winners. Versions available include pages for textbased browsers, graphic browsers, Dvi (TeX) format, PDF format, and PostScript.
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 Geometric Formulas (Ask Dr. Math FAQ)  Math Forum
Formulas for twodimensional figures: triangle (equilateral, isosceles, right, scalene); quadrilateral (general, square, rectangle, parallelogram, rhombus, trapezoid, kite, cyclic and cyclicinscriptable); regular polygon; circle (arc, segment, sector); ellipse; parabolic segment; and threedimensional figures: rectangular parallelepiped (cube); prism; pyramid (square pyramid, frustum); regular polyhedron (tetrahedron, cube, octahedron, dodecahedron, icosahedron); cylinder (right circular); cone (right circular, frustum); sphere (sector, cap, segment, zone, lune); ellipsoid; circular torus; spherical polygon. Includes Defining Geometric Figures.
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 Teacher2Teacher (T2T) FAQ  Math Forum
Answers to frequently asked questions from the archives of the Math Forum's question and answer service for teachers, with links to T2T discussions, Ask Dr. Math and the Ask Dr. Math FAQ, and relevant resources on the Web.
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