Answer
$\theta$ = $23.3^{\circ}$
Work Step by Step
Given, $\sin\theta$ = $0.3971$
Therefore-
$\theta$ = $\sin^{-1} 0.3971$
Using calculator in degree mode-(0.3971 → $\sin^{-1}$)
$\theta$ = $(23.397010203) ^{\circ}$
On rounding to the nearest tenth of a degree-
$\theta$ = $23.3^{\circ}$
