Lesson Equations

Source code of 'Equations'

This Lesson (Equations) was created by by Nate(3500)

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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}}}, &nbsp;where &nbsp;{{{h}}}&nbsp; is the height, &nbsp;{{{l}}}&nbsp; is the length and &nbsp;{{{w}}}&nbsp; is the width.
{{{Volume = lwh}}}

Cone:
{{{Area = pi*r*(q + r)}}}, &nbsp;where &nbsp;{{{q}}}&nbsp; 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}}}, &nbsp;where &nbsp;{{{a}}}&nbsp; and &nbsp;{{{b}}}&nbsp; are the semi-axes of the ellipse.

Cylinder:
{{{Area = 2*pi*r(r + h)}}}. &nbsp;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)}}}, &nbsp;where &nbsp;{{{r2}}}&nbsp; and &nbsp;{{{r1}}}&nbsp; are the different radii.
{{{Volume = (1/4) * pi^2 * (r1 + r2) * (r1 - r2)^2}}}