[tex]Length\ and\ high\ make\ with\ horizontal\ rectangular\ triangle\\\\
Length \is \ hypotenuse\ \\\
high\ and\ horizontal\ are\ cathetuses.\\\\
\angle\ \alpha\ between\ length\ and\ horizontal=?\\
sin \alpha =\frac{10}{44}\\
sin \alpha \approx0,227\\
\alpha \approx\ arcsin0,227\approx\ 13^\circ
[/tex]