Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 41)
What is the purpose of the Law of Cosines?
To find the area of a triangle.
To determine the relationship between sides and angles.
To determine if a triangle is a right-angled triangle.
To relate the sides and angles of a right angle triangle
Explanation
The Law of Cosines relates sides and angles.
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