TeX Quellcode:

\begin{array}{rclcc} h^2+p^2 &=& a^2 & \vert & \sqrt{} \cr a &=& \sqrt{h^2+p^2} \cr &\approx& \sqrt{3{,}48^2+3{,}9^2} \cr &\approx& \sqrt{27{,}3} \cr & \approx & 5{,}22 \, cm \end{array}