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\frac{360\degree}{n}
\left(n-2\right)\left(180\degree\right)
360\degree
\left(n-3\right)
\frac{n\left(n-3\right)}{2}
P=n\cdot l
A=\frac{P\cdot a}{2}
P=3l
A=\frac{\sqrt3}{4}l^2
P=4l
A=l^2
D=\sqrt2\cdot l
P=2\left(a+b\right)
A=a\cdot b
P=4l
A=\frac{d\cdot D}{2}
P=a+b+B+c
A=\frac{\left(b+B\right)h}{2}
L=\sqrt3R
a=\frac{R}{2}
L=2\sqrt3r
a=r
L=\sqrt2\cdot R
a=\frac{\sqrt2}{2}\cdot R
L=2r
a=r
L=R
a=\frac{\sqrt3}{2}R
L=\frac{2\sqrt3}{3}r
a=r
P=2\pi r
A=\pi r^2
P=x+\theta r
A=\frac12r^2\left(\theta-\sin\theta\right)
L\left(AB\right)=\theta r
P=2r+\theta r
A=\frac12\theta r^2
P=2\pi\left(R+r\right)
A=\pi\left(R^2-r^2\right)
A_{l}=P\cdot h
A=A_{l}+2A_{b}
V=A_{b}\cdot h
A=A_{l}+A_{b}
V=\frac13A_{b}\cdot h
A=A_{l}+A_{b}+A_{B}
V=\frac13h\left(A_{b}+\sqrt{A_{b}\cdot A_{B}}+A_{B}\right)
V=abc
d=\sqrt{a^2+b^2+c^2}
A=2\left(ab+ac+bc\right)
V=\pi r^2h
A_{l}=2\pi rh
A_{t}=2\pi r\left(r+h\right)
V=\frac{\pi}{3}r^2h
A_{l}=\pi rg
A_{t}=\pi r\left(r+g\right)
V=\frac{\pi}{3}h\left(r^2+rR+R^2\right)
A_{l}=\pi\left(r+R\right)g
A_{t}=\pi\left\lbrack\left(r+R\right)g+r^2+R^2\right\rbrack
A=4\pi r^2
V=\frac43\pi r^3
A=2\pi rh
V=\frac{\pi h^2}{3}\left(3r-h\right)
d=\sqrt3a
A=6a^2
V=a^3
h=\frac{\sqrt6}{3}a
A=\sqrt3a^2
V=\frac{\sqrt2}{12}a^3
A=2\sqrt3a^2
V=\frac{\sqrt2}{3}a^3
A=3\sqrt{25+10\sqrt5}a^2
V=\frac14\left(15+7\sqrt5\right)a^3
A=5\sqrt3a^2
V=\frac{5}{12}\left(3+\sqrt5\right)a^3