What is the size of angle x in the diagram

A.
15^{o} 
B.
30^{o} 
C.
45^{o} 
D.
60^{o}
Correct Answer: Option B
Explanation
(Sintheta^{circ} = frac{opp}{hyp}\
Sin X^{circ}=frac{5}{10}=0.5000\SinX^{circ}\
X^{circ} = sin^{1}0.5000\
X^{circ}=30^{circ})