+118724 $$tan\theta=\frac{\sqrt3}{7}\\
\theta=tan^{-1}\frac{\sqrt3}{7}=atan\frac{\sqrt3}{7}$$
inverse tan and arc tan are the same thing. Now just do it on the site calc.
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\sqrt{{\mathtt{3}}}}}{{\mathtt{7}}}}\right)} = {\mathtt{13.897\: \!886\: \!248\: \!014^{\circ}}}$$
.+118724 $$tan\theta=\frac{\sqrt3}{7}\\
\theta=tan^{-1}\frac{\sqrt3}{7}=atan\frac{\sqrt3}{7}$$
inverse tan and arc tan are the same thing. Now just do it on the site calc.
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\sqrt{{\mathtt{3}}}}}{{\mathtt{7}}}}\right)} = {\mathtt{13.897\: \!886\: \!248\: \!014^{\circ}}}$$
