In any right-angled triangle, the sine of an angle is defined as the length of the side opposite the angle divided by the length of the hypotenuse; $$\sin\theta=\frac{\text{opposite}}{\text{hypotenuse}}$$ , where 0°<θ<90°.
In any right-angled triangle, the sine of an angle is defined as the length of the side opposite the angle divided by the length of the hypotenuse; $$\sin\theta=\frac{\text{opposite}}{\text{hypotenuse}}$$ , where 0°<θ<90°.