Question

$sina = \frac{1}{2}$
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Answer 1

Step-by-step explanation:

Sina= 1/2

sina= sin30°

a = 30°

hope it helps you...☺❤✌

Answer 2

Hello !!

For you answer this question , you need have in mind that 1/2 is the sin by a notable angle. So, this angle is 30°.

Sin(30°) = 1/2

[See the table of the notable angle in the attachment].

Final result : (a) is 30°.

I hope I have collaborated !