$A=\frac{1}{2}\cdot g\cdot hA=\backslash frac\{1\}\{2\}\backslash cdot\; g\backslash cdot\; h$

$30={\displaystyle \frac{1}{2}}\cdot 5\cdot h30=\backslash dfrac\{1\}\{2\}\backslash cdot\; 5\backslash cdot\; h$

$h={\displaystyle \frac{30\cdot 2}{5}}=12h=\backslash dfrac\{30\backslash cdot\; 2\}\{5\}=12$

Die Höhe des Dreiecks beträgt $12\text{ cm}12\backslash cm$.