+33661 Use the calculator on this site. Press the 2nd button, then acos (which means cos-1) then 0.6689.
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{cos}}^{\!\!\mathtt{-1}}{\left({\mathtt{0.668\: \!9}}\right)} = {\mathtt{48.017\: \!777\: \!054\: \!356^{\circ}}}$$
.
+33661 Use the calculator on this site. Press the 2nd button, then acos (which means cos-1) then 0.6689.
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{cos}}^{\!\!\mathtt{-1}}{\left({\mathtt{0.668\: \!9}}\right)} = {\mathtt{48.017\: \!777\: \!054\: \!356^{\circ}}}$$
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