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'
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.
