Answer
$35^{\circ}; 215^{\circ}$
Work Step by Step
Using degree mode and inverse tangent function, we get
$\theta=\tan^{-1}0.70020753=35^{\circ}$
Another possible value of $\theta$ can be found by using the identity $\tan(180^{\circ}+x)=\tan x$
$\implies \tan 35^{\circ}=\tan(180+35)^{\circ}=\tan 215^{\circ}$
$\implies\tan^{-1}0.70020753=35^{\circ}$ or $\tan^{-1}0.70020753=215^{\circ}$
