Which theorem or postulate proves the two triangles are similar?

Question

anonymous · Answer

attachment

anonymous · Answer

@TheSmartOne @whpalmer4 @undeadknight26 @jdoe0001 

can you guys help me with this question.

anonymous · Answer

please.

anonymous · Answer

@Young-Lau

anonymous · Answer

What theorems do you know?

anonymous · Answer

I'm homeschooled, so I know absolutely nothing. that's why I came here for help.

anonymous · Answer

The first one that comes to my mind is similar triangles theorems. This website should help http://www.regentsprep.org/regents/math/geometry/gpb/theorems.htm I believe the correct one would be Side Proportionality

anonymous · Answer

these are the choices. 
a. AS Postulate	
b. SSS Theorem	
c. AA Postulate	
d. SAS Theorem

anonymous · Answer

Someone told me that a is not an option.

anonymous · Answer

From the picture, all that is labeled are three sides.  I, personally, would choose b.  
However, I haven't taken geometry in 5 years.

anonymous · Answer

alright well I'll go with b. Just because i'm sure you have more knowledge of it then me. And i'll let you know if it was right, or not. thank you!

anonymous · Answer

You're welcome!

anonymous · Answer

It was the only one I got wrong. but that's okay!

anonymous · Answer

I apologize, what was the right answer? d?