#8.3 Proving Triangle Similarity by SSS and SAS

Yes, they are similar.

No, they are not similar.

Cannot be determined.

Yes, they are similar.

No, they are not similar.

Cannot be determined.

4

9

2

10

6

9

13.5

14

$\frac{5}{7}$

$\frac{4}{9}$

$\frac{3}{7}$

$\frac{2}{9}$

Yes, by SSS

Yes, by SAS

No

Cannot be determined

 $\Delta ACE\sim\Delta BCD$  

 $\Delta AEC\sim\Delta BCD$  

 $\Delta BDC\sim\Delta EAC$  

Cannot be determined

Yes, by SSS

Yes, by SAS

No, they are not similar

Cannot be determined.

$\Delta EFG\sim\Delta MLN$

$\Delta EFG\sim\Delta MNL$

$\Delta FGE\sim\Delta NML$

The triangles are not similar.

SSS Similarity

SAS Similarity

AAS Similarity

AA Similarity