$
\text{Gegeben:}\\\text{Hypotenuse} \qquad c \qquad [m] \\
\text{Ankathete zu } \alpha \qquad b \qquad [m] \\
\\ \text{Gesucht:} \\\text{Winkel} \qquad \alpha \qquad [^{\circ}] \\
\\ cos \alpha = \frac{b}{c}\\ \textbf{Gegeben:} \\ c=2\frac{1}{2}m \qquad b=1m \qquad \\ \\ \textbf{Rechnung:} \\
cos \alpha = \frac{b}{c} \\
c=2\frac{1}{2}m\\
b=1m\\
cos \alpha = \frac{1m}{2\frac{1}{2}m}\\\\\alpha=66,4^{\circ}
\\\\\\ \small \begin{array}{|l|} \hline c=\\ \hline 2\frac{1}{2} m \\ \hline 25 dm \\ \hline 250 cm \\ \hline 2,5\cdot 10^{3} mm \\ \hline 2,5\cdot 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline b=\\ \hline 1 m \\ \hline 10 dm \\ \hline 100 cm \\ \hline 10^{3} mm \\ \hline 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline alpha=\\ \hline 66,4 ° \\ \hline 3,99\cdot 10^{3} \text{'} \\ \hline 2,39\cdot 10^{5} \text{''} \\ \hline 73,8 gon \\ \hline 1,16 rad \\ \hline \end{array}$