Question

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

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

Answer 1

`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`