SOLUTION: Which postulate identifies these triangles as being similar? A. ASA B. SAS C. SSS D. AA Below I have a link with a picture of my problem. http://3.bp.blogspot.com

Question 466468: Which postulate identifies these triangles as being similar?
A. ASA
B. SAS
C. SSS
D. AA
Below I have a link with a picture of my problem.
http://3.bp.blogspot.com/-ObSxwafV4CU/Tg4GpmkWQXI/AAAAAAAAAAU/mKUoQ9wraAA/s1600/IMG_20110630_184234.jpg
Answer by ccs2011(207) (Show Source): You can put this solution on YOUR website!
The first 3 postulates deal with congruence not similarity:
ASA
SAS
SSS
Thus it must be AA.
Justification,
m ABC = m DEC from diagram
Both triangles share vertex C
m ACB = m DCE
If 2 triangles have 2 equivalent angles, then it follows that 3rd angle is also equivalent
180-(a+b) = 180 -(a+b)
Therefore the 2 triangles are similar

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