Law of Sine (Sine Law)

Last updated at August 2, 2026 by

For triangle Δ ABC

Sine Law is 

Sine Law.jpg

Here

  • A, B, C are vertices of Δ ABC
  • a is side opposite to A i.e. BC
  • b is side opposite to B i.e. AC
  • c is side opposite to C i.e. AB

 

Let’s look at its proof

 

Law of Sine (Sine Law) - Part 2

Law of Sine (Sine Law) - Part 3 Law of Sine (Sine Law) - Part 4 Law of Sine (Sine Law) - Part 5 Law of Sine (Sine Law) - Part 6

 

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Transcript

For triangle ABC Sine Law is Here A, B, C are vertices of ABC a is side opposite to A i.e. BC b is side opposite to B i.e. AC c is side opposite to C i.e. AB Let s look at its proof

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