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28 lip 2024 · The law of cosines calculator can help you solve a vast number of triangular problems. You will learn what is the law of cosines (also known as the cosine rule), the law of cosines formula, and its applications. Scroll down to find out when and how to use the law of cosines, and check out the proofs of this law.
- Perimeter of a Triangle Calculator
To find the perimeter of a triangle knowing two sides (a and...
- Triangle Angle Calculator
Write down the law of cosines 5² = 3² + 4² - 2×3×4×cos(α)....
- Cosine Calculator
Important properties of a cosine function: Range (codomain)...
- Triangular Prism Calculator
Usually, what you need to calculate are the triangular prism...
- Law of Sines
This law of sines calculator is a handy tool for solving...
- Distance Formula
Before we get into how to calculate distances, we should...
- Triangle Area Calculator
A triangle is one of the most basic shapes in geometry. The...
- Sine Calculator
Sine is one of the three most common (others are cosine and...
- Perimeter of a Triangle Calculator
6 lut 2024 · Calculator shows law of cosines equations and work. Calculates triangle perimeter, semi-perimeter, area, radius of inscribed circle, and radius of circumscribed circle around triangle. Calculate angles or sides of triangles with the Law of Cosines.
The Law of Cosines, also known as the Cosine Rule or Cosine Formula, is an important geometry formula that relates the sides and angle of any triangle, be it acute, obtuse, or right-angled. It extends the Pythagorean theorem, a particular case for right triangles.
The Law of Cosines formula is versatile and can be rearranged to solve for different unknowns: To find a side: ( c^2 = a^2 + b^2 – 2ab \cdot \cos(C) ) To find an angle: ( \cos(C) = \frac{a^2 + b^2 – c^2}{2ab} )
Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals.
Use our Law of Cosines calculator to find any angle or side of a triangle, plus learn the Law of Cosines formulas and how to use them.
Free Law of Cosines calculator - Calculate sides and angles for triangles using law of cosines step-by-step.
