Discover our user-friendly Cosine Calculator, designed to quickly compute the cosine of an angle. Ideal for students, engineers, and mathematicians, this free online tool simplifies trigonometric calculations for both degrees and radians. Instantly find the cos(x) for your angles.
Formula:
The cosine of an angle (θ) in a right-angled triangle is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.
Formula: Cos(θ) = Adjacent / Hypotenuse
Where:
- θ: The angle
- Adjacent: The side adjacent to the angle
- Hypotenuse: The longest side, opposite the right angle