+118609 Well if you are talking about a right angles triangle then
it will be inverse tan or arc tan
atan(4/7)
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{4}}}{{\mathtt{7}}}}\right)} = {\mathtt{29.744\: \!881\: \!296\: \!942^{\circ}}}$$
+118609 Well if you are talking about a right angles triangle then
it will be inverse tan or arc tan
atan(4/7)
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{4}}}{{\mathtt{7}}}}\right)} = {\mathtt{29.744\: \!881\: \!296\: \!942^{\circ}}}$$
