## About COS Ratio Calculator (Formula)

The COS Ratio Calculator is a tool used to calculate the cosine ratio of an angle in a right-angled triangle. It aids in trigonometric calculations and solving geometric problems. The formula for calculating the cosine ratio involves considering the adjacent side and the hypotenuse of the right-angled triangle.

Formula for calculating cosine ratio:

**COS θ = Adjacent Side / Hypotenuse**

In this formula, “θ” represents the angle in the right-angled triangle, “Adjacent Side” represents the side adjacent to the angle, and “Hypotenuse” represents the longest side of the right-angled triangle, which is opposite to the right angle.

For example, let’s say we have a right-angled triangle with an angle θ, and the length of the adjacent side is 4 units, while the length of the hypotenuse is 5 units. The cosine ratio of the angle θ would be calculated as follows:

COS θ = 4 units / 5 units = 0.8

This means that the cosine of the angle θ is 0.8.

The COS Ratio Calculator simplifies the process of calculating the cosine ratio in right-angled triangles, aiding students, engineers, and mathematicians in solving trigonometric problems and making informed decisions based on angles and sides in geometric contexts. By inputting the lengths of the adjacent side and the hypotenuse, the calculator quickly provides the cosine ratio, allowing users to understand the relationship between angles and sides in right-angled triangles.