what is mean by coseine rule
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Answer:
A law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them.
Step-by-step explanation:
The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. ... Similarly, if two sides and the angle between them is known, the cosine rule allows one to find the third side length.
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Step-by-step explanation:
a law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them.
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