noun
- in trigonometry, the ratio of the length of the side opposite an angle to the length of the hypotenuse in a right triangle
Usage: mathematics
Examples
- The sine of 30 degrees is 0.5.
- To find the height of the triangle, multiply the hypotenuse by the sine of the angle.
- Students learn about sine, cosine, and tangent in trigonometry class.
- The sine function creates a wave pattern when graphed.
- Use the sine rule to solve this triangle problem.
- The sine of 90 degrees equals 1.