Beispiel Nr: 04
$ \text{Gegeben:}\\\text{Kreiszahl} \qquad \pi \qquad [] \\ \text{Radius} \qquad r \qquad [m] \\ \text{Winkel} \qquad \alpha \qquad [^{\circ}] \\ \\ \text{Gesucht:} \\\text{Kreisbogen} \qquad b \qquad [m] \\ \\ b = \frac{2\cdot r\cdot \pi \cdot \alpha }{ 360}\\ \textbf{Gegeben:} \\ \pi=3,14 \qquad r=4m \qquad \alpha=60^{\circ} \qquad \\ \\ \textbf{Rechnung:} \\ b = \frac{2\cdot r\cdot \pi \cdot \alpha }{ 360} \\ \pi=3,14\\ r=4m\\ \alpha=60^{\circ}\\ b = \frac{2\cdot 4m\cdot 3,14 \cdot 60^{\circ} }{ 360}\\\\b=4,19m \\\\ \tiny \begin{array}{|l|} \hline r=\\ \hline 4 m \\ \hline 40 dm \\ \hline 400 cm \\ \hline 4\cdot 10^{3} mm \\ \hline 4\cdot 10^{6} \mu m \\ \hline 0,004 km \\ \hline \end{array} \tiny \begin{array}{|l|} \hline alpha=\\ \hline 60 ° \\ \hline 3,6\cdot 10^{3} \text{'} \\ \hline 2,16\cdot 10^{5} \text{''} \\ \hline 66,7 gon \\ \hline 1,05 rad \\ \hline 0,00105 mrad \\ \hline \end{array} \tiny \begin{array}{|l|} \hline b=\\ \hline 4,19 m \\ \hline 41,9 dm \\ \hline 419 cm \\ \hline 4,19\cdot 10^{3} mm \\ \hline 4,19\cdot 10^{6} \mu m \\ \hline 0,00419 km \\ \hline \end{array}$