Question

So my Algebra 2 EOC (end of course) exam is tomorrow, and I don't know much about the law of sine and cosine? Is anyone willing to help?
I'm gonna be posting a lot of questions so I'm really sorry if I get annoying! Thanks again!

Answer 1

The cosine rule is very useful when you know the value of 2 sides and the included angle in a triangle.

Answer 2

in the above triangle knowing a , c and angle B we can find value of side b using:-

b^2 = a^2 + c^2 - 2ac cos B

Answer 3

@welshfella Thank you so much! :)

Answer 4

yw