Which theorem or postulate proves that △ABC and △DEF are similar?

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Which theorem or postulate proves that △ABC and △DEF are similar?

Select from the drop-down menu to correctly complete the statement.

The two triangles are similar by the
AA Similarity Postulate
SSS Similarity Therom
SAS Similarity Therom
HELP PLEASE

1 Answer
Jan 26, 2018

#SAS#

Explanation:

.

#/_ABC~=/_DEF#

#(AB)/(ED)=21/7=3#

#(BC)/(EF)=33/11=3#

Two sets of corresponding sides have the same ratio and therefore are similar. The angles between them are congruent.

Therefore, the two triangles are similar by #SAS#