User:Jawr256/Stuff/3D

JAWR256 USERSPACE NAVIGATION [edit]
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Shape	Volume formula	Surface area formula
Sphere	$V = \frac{4 \pi r^3}{3}$	$A = 4 \pi r^2 \,$
Tetrahedron	$V=\begin{matrix}{1\over12}\end{matrix}\sqrt{2}a^3$	$A=\sqrt{3}a^2$
Cube	$V = a 3$	$A = 6 a 2$
Octahedron	$V=\begin{matrix}{1\over3}\end{matrix}\sqrt{2}a^3$	$A=2\sqrt{3}a^2$
Dodecahedron	$V=\begin{matrix}{1\over4}\end{matrix}(15+7\sqrt5)a^3$	$A=3\sqrt{25+10\sqrt5}a^2$
Icosahedron	$V=\begin{matrix}{5\over12}\end{matrix}(3+\sqrt5)a^3$	$A=5\sqrt3a^2$