$
\text{Gegeben:}\\ \text{Kathete} \qquad a \qquad [m] \\
\text{Kathete} \qquad b \qquad [m] \\
\\ \text{Gesucht:} \\\text{Hypotenuse} \qquad c \qquad [m] \\
\\ c =\sqrt{a^{2} + b^{2} }\\ \textbf{Gegeben:} \\ a=\frac{1}{3}m \qquad b=\frac{3}{4}m \qquad \\ \\ \textbf{Rechnung:} \\
c =\sqrt{a^{2} + b^{2} } \\
a=\frac{1}{3}m\\
b=\frac{3}{4}m\\
c =\sqrt{(\frac{1}{3}m)^{2} + (\frac{3}{4}m)^{2} }\\\\c=0,821m
\\\\\\ \small \begin{array}{|l|} \hline a=\\ \hline \frac{1}{3} m \\ \hline 3\frac{1}{3} dm \\ \hline 33\frac{1}{3} cm \\ \hline 333\frac{1}{3} mm \\ \hline 333333\frac{1}{3} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline b=\\ \hline \frac{3}{4} m \\ \hline 7\frac{1}{2} dm \\ \hline 75 cm \\ \hline 750 mm \\ \hline 7,5\cdot 10^{5} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline c=\\ \hline 0,821 m \\ \hline 8,21 dm \\ \hline 82,1 cm \\ \hline 821 mm \\ \hline 8,21\cdot 10^{5} \mu m \\ \hline \end{array}$