# Cosine vs. Cos — What's the Difference?

## Compare with Definitions

#### Cosine

The trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
May 22, 2022

See romaine.
May 22, 2022

#### Cosine

In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.
May 22, 2022

#### Cos

A variety of lettuce with long, crisp leaves.
May 22, 2022

#### Cosine

The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.
May 22, 2022

A cousin, cuz.
May 22, 2022

#### Cosine

(trigonometry) In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos Category:en:Functions Category:en:Trigonometric functions
May 22, 2022

Because
May 22, 2022

#### Cosine

The sine of the complement of an arc or angle. See Illust. of Functions.
May 22, 2022

#### Cos

Ratio of the adjacent side to the hypotenuse of a right-angled triangle
May 22, 2022

#### Cosine

Ratio of the adjacent side to the hypotenuse of a right-angled triangle
May 22, 2022

#### Cos

Lettuce with long dark-green leaves in a loosely packed elongated head
May 22, 2022