What is the cosine rule?

We look at the cosine rule both for finding size lengths and angles, as well as how to correctly label the triangle.
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[@thefuture6661]

THANK YOU SO MUCH FOR EXPLAINING THE FORMULA

[@Sean-rt1uv]

thanks gang

[@pluvvio]

what do you look for when you're trying to figure out if you need to use sine rule or cosine rule

[@sbmathsyt5306]

For the sine rule you need two sides and two angles. That could be 2 known sides, one known angle and an unknown angle that you are trying to find for example.
For the cosine rule we require 3 sides and 1 angle

[@AnduamePihanie-xx4vu]

thanks 😊

[@ANITOOB]

it must be hard for you to write with that pen

[@blaastieois]

赛 D E B E S T I A

[@thenotorious222]

코사인법칙

[@arjunsarkart]

I love u

[@focusonmyaim8980]

bhai sote hue vdo bna rha hai kya 😬