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Your search for What is sine of 30 degrees returned the following results:

of ½ or 0.5

Thus, an angle of 30 degrees has a sine of ½ or 0.5.

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the y-coordinate(0.5) of the point of intersection

The sin of 30 degrees equals the y-coordinate(0.5) of the point of intersection (0.866, 0.5) of unit circle and r.

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1/2)/1= 1/2

The sine of 30 degrees is (1/2)/1= 1/2.

one half

So the sine of 30 degrees is one half.

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a tabular value

The sine of 30 degrees is a tabular value.

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the exact sine of 30 degrees

What is the exact sine of 30 degrees?

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quotient of one by two and cos of 30 degrees

According to trigonometry, sin of 30 degrees is quotient of one by two and cos of 30 degrees

over 15

The sine of 30 degrees is equal to “a” over 15.

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In trigonometry as $\sin{30^\circ}$

In trigonometry, the sine of $30$ degrees is written as $\sin{30^\circ}$ and let us learn what the sin $30$ degrees value is.

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None of these equations

None of these equations work in all situations and have to be “adjusted” by quadrant due to the fact that the cos/sin formulas give the same answer for different angles, i.e.: sin(30 degrees) = sin(150 degrees).