What is the Value of Cos 30 Degrees?
The value of cos 30 degrees in decimals is 0.8660. Converting degree to radian, that is, θ in radians = θ × π/180° or θ × Pi/180°. Therefore, converting cos 30° in radians will give cos (30 × π/180°), and the final value in radians will become cos(π/6) or cos (0.5235). Following are the values of cos 30° in different forms,
- Cos 30° in decimal = 0.8660
- Cos 30° in radians = cos(π/6) or cos (0.5235)
- Cos 30° in fraction = √3/2
- Cos (-30°) = 0.8660
Cos 30 Degrees
Cos 30 Degrees: The value of cos 30 degrees in trigonometry is √3/2. In a right-angled triangle, cosine is the ratio of the base and hypotenuse. When the angle of the right-angled triangle is 30°, cos 30° is required. In fraction form, cos 30° is √3/2; in decimal form, the value is 0.8660.
Let’s understand how the value of cos 30° is obtained with examples.
Table of Content
- What is the Value of Cos 30 Degrees?
- How to Find the Value of Cos 30 Degrees
- Cos 30 Degrees – Methods to Find
- Cos 30 Degrees in Terms of Trigonometric Functions
- Cos 30 Degrees Using Unit Circle
- Cos 30 Degrees Proof
- Theoretical Approach
- Practical Approach
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- Solved Examples on Cos 30 Degrees