Week 17-PreCalc 11- Sine and Cosine Laws

This week in PreCalc 11, we learned about the Sine Law in Trigonometry. The Sine Law is a law to help more easily determine the angles/sides of a given triangle. When putting this law into practice during homework questions I was unaware that

Sin A/a = Sin B/b = Sin C/c was used to find the angles

while,

a/Sin A = b/Sin B = c/Sin C is used to find the sides of the triangle

As you can see in the first image, Sine Law is used to find the angle with Sin A/a = Sin B/b = Sin C/c

And in the second image Sine Law is used to find the side length with a/Sin A = b/Sin B = c/Sin C

Leave a Reply

Your email address will not be published. Required fields are marked *