Sections 8.3 and 8.4

So today we learned how to prove that triangles are similar.
The 3 ways are:
AA~
SSS~
SAS~

When proving triangles congruent we had also learned ASA, AAS, and HL. But these are uneccessary for proving triangles similar because in each of these you already have some form of the first 3.



With the 2 triangles to the left we cannot prove them similar, because we do not have AA~, SSS~, or SAS~.



With these two triangles we can prove them similar using AA~.

The same principles apply to SSA~ and SSS~. Although you need to always remember that in order to prove similar the angles you use must be congruent, but the sides must be proportional.

I won the second game. Curse you blog post.
Big Money!.... that was for you Joey
Ah isn't math fun?
-Andrew