Arc cos 24/30
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{cos}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{24}}}{{\mathtt{30}}}}\right)} = {\mathtt{36.869\: \!897\: \!645\: \!844^{\circ}}}$$
