what is cos?

Haha , I'm sorry for the confusion!

Where i come frome we say catet (or katet) to describe the two sides that aren't the hypotenuse in a right triangle.

It comes from greek kathetos meaning the same thing.

what could u not get 2

"cos" (short for cosine) is the ratio between the adjecent catet and the hypotenuse in a right triangle.

$${\frac{{\mathtt{catet}}}{{\mathtt{hypotenuse}}}}$$

Squaddy......I don't believe I've ever encountered the word "catet" before.....Do you know its origin ???...We usually say adjacent "side" in the US...

Hi Squaddy - I am wondering what catet means too?

Thanks, Squaddy.....I learn something new everyday......!!!!

I have never heard that term either. Ketet Thanks Squaddy