Solve for a
a=\frac{\pi }{6r}
r\neq 0
Solve for r
r=\frac{\pi }{6a}
a\neq 0
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ar=\arccos(\frac{\sqrt{3}}{2})
Swap sides so that all variable terms are on the left hand side.
ra=\arccos(\frac{\sqrt{3}}{2})
The equation is in standard form.
\frac{ra}{r}=\frac{\pi }{6r}
Divide both sides by r.
a=\frac{\pi }{6r}
Dividing by r undoes the multiplication by r.
ar=\arccos(\frac{\sqrt{3}}{2})
Swap sides so that all variable terms are on the left hand side.
\frac{ar}{a}=\frac{\pi }{6a}
Divide both sides by a.
r=\frac{\pi }{6a}
Dividing by a undoes the multiplication by a.
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