The value of sin 30 degrees is 0.5. Sin 30 degrees can also be expressed using the equivalent of the given angle (30 degrees) in radians (0.52359) . To define the sine function of an angle, start with a right-angled triangle ABC with the angle of interest and the sides of a triangle. The three sides of the triangle are given as follows:
- The opposite side is the side opposite to the angle of interest.
- The hypotenuse side is the side opposite the right angle and it is always the longest side of a right triangle.
- The adjacent side is the side that is adjacent to the angle of interest and the right angle.
Using this triangle, we can derive the value of sin 30 degrees as follows:
- Sin 30° = BD/AB = a/2a = 1 / 2.
- Therefore, sin 30 value is 1/2.
In summary, the value of sin 30 degrees is 0.5 or 1/2.
