Answer:
[tex] \theta = \frac{\pi}{6} [/tex]
Step-by-step explanation:
[tex] \sin \theta = \frac{1}{2} \\ \\ \sin \theta = \sin \: 30 \degree \\ ( \because \: \sin \: 30 \degree = \frac{1}{2}) \\ \\ \implies \: \theta = 30 \degree ( \because \: 0 < \theta < \frac{\pi}{2} ) \\ \\ or \: \: \theta = \frac{\pi}{6} [/tex]