sine

[sʌɪn]

sine Definition

a trigonometric function that, for an acute angle, is the ratio between the length of the side opposite the angle and the length of the hypotenuse of the right triangle containing the angle.

Using sine: Examples

Take a moment to familiarize yourself with how "sine" can be used in various situations through the following examples!

  • Example

    To find the sine of an angle, divide the length of the side opposite the angle by the length of the hypotenuse.

  • Example

    The sine of 30 degrees is 0.5.

  • Example

    The sine function is used extensively in mathematics and physics.

Origins of sine

from Latin 'sinus', meaning 'fold, curve, bosom'

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Summary: sine in Brief

In mathematics, 'sine' [sʌɪn] is a trigonometric function that calculates the ratio between the length of the side opposite an acute angle and the length of the hypotenuse of the right triangle containing the angle. The sine function is widely used in mathematics and physics.