# Cosine Calculator

Hypotenuse side:
Cosine Angle:

Cosine Calculator is a free online tool that displays the cosine angle for the given adjacent and hypotenuse side. BYJU’S online cosine calculator tool makes the calculation faster, and it displays the cosine angle in a fraction of seconds.

## How to Use the Cosine Calculator?

The procedure to use the cosine calculator is as follows:

Step 1: Enter the length of the adjacent and hypotenuse in the respective input field

Step 2: Now click the button “Solve” to get the angle

Step 3: Finally, the cosine angle will be displayed in the output field

### What is Meant by Cosine Function?

In Mathematics, trigonometry is a branch that deals with sides and angles of the right-angle triangle. The six important trigonometric functions are obtained based on the sides of the right triangle. The three most common trigonometric functions are sine, cosine, and tangent. The reciprocal of these functions are cosecant, secant and cotangent. The cosine function is a function which is the ratio of the adjacent side to the hypotenuse of the right triangle. Thus, the cosine angle can be calculated using the formula,

Cos θ = Adjacent Side / Hypotenuse