TeX Quellcode:

\begin{array}{rcrcl}\gamma &=& \delta &=&\dfrac{360^\circ-\alpha-\beta}{2} \cr\cr \gamma &=& \delta &=&\dfrac{360^\circ-53{,}13^\circ-53{,}13^\circ}{2} \cr \gamma &=& \delta &=&126{,}87^\circ\end{array}