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Geometry: Area and Surface Area
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Circle: {{{Circumference = 2*pi*r = pi*d}}} {{{Area = pi*r^2}}} Square: {{{Circumference = 4s}}} {{{Area = s^2}}} Cube: {{{Area = 6s^2}}} {{{Volume = s^3}}} Rectangle: {{{Circumference = 2l + 2w}}} {{{Area = lw}}} Rectangle Prism: {{{Area = 2hw + 2lw + 2wl}}}, where {{{h}}} is the height, {{{l}}} is the length and {{{w}}} is the width. {{{Volume = lwh}}} Cone: {{{Area = pi*r*(q + r)}}}, where {{{q}}} is the slant. {{{Volume = (1/3)*pi*r^2h}}} Sphere: {{{Area = 4*pi*r^2}}} {{{Volume = (4/3)*pi*r^3}}} Flat Ellipse: {{{Area = pi*a*b}}}, where {{{a}}} and {{{b}}} are the semi-axes of the ellipse. Cylinder: {{{Area = 2*pi*r(r + h)}}}. It includes the cylinder's side surface and the surface of the two bases. {{{Volume = pi*r^2h}}} Torus: {{{Area = pi^2((r2)^2 - (r1)^2)}}}, where {{{r2}}} and {{{r1}}} are the different radii. {{{Volume = (1/4) * pi^2 * (r1 + r2) * (r1 - r2)^2}}}