Hello there Gummy Bears!!! So far, we have been only able to work with right triangles. And over the past months, we've been using these kinds of triangles but we should break free from those because there are a lot of other triangles in this world that is not right angled.

So now, we're working with a non-right triangle and we have the Laws to help us, namely the Sine Law and the Cosine Law. First, let's take a look at Cosine Law:


In trigonometry, the Cosine Law (also known as the cosine formula or cosine rule) is a statement about a general triangle which relates the lengths of its sides to the cosine of one of its angles. Using notation below, the cosine law states that:

a2=b2+c2-2(ab)CosA

Now let's see what the Sine Law has for us.

The Sine Law states that its sides and angles are related this way:

*NOTE: Please press the link "Sine Law" to view how this certain law operates. I hope you understand it:-)

If you have had any troubles in using the formulas and you can't understand my explanation, I have found some videos that might help you more.