when did u learn bout stewart's theorem??

Question

plz.. is anybody could remember??

that's about 3angle... 3angle... is anybody knows bout 3angle?? T-R-I-A-N-G-L-E!!! why nobody's remember bout dis theorem???

Answer 1

http://planetmath.org/encyclopedia/StewartsTheorem.html

This website explains it fairly well, and has a proof as well.

Answer 2

In 1947 in Geometry class. The theorem is named after the 18th century mathemetician Mathew Stewart. Forms of the theorem were known as long ago as the 4th century AD.

I don't know if you are asking what it is, but in case you are:

In any triangle ABC with sides a, b, and c,
a^2n + b^2 m = cd^2 +cmn
where d is the length of a segment from vertex C to the opposite side, dividing that side into two segments with lengths m and n.

Hope this is what you were looking for, although I really don't understand why you want to know when I first learned about it.

Answer 3

Never... at least, I don't remember ever learning about it. Perhaps if you told me what it was, I might recall when I last heard about it.