Question

are the two triangles similar? if so, how do you know ?

Answer 1

1)\[Yes, \Delta ABC ~ \Delta MNO; SSS\]
2) \[Yes , \Delta ABC \Delta MNO; SAS \]
3) \[Yes, \Delta ABC \Delta MNO ; AA\]
4) The triangles are not similar

Answer 2

4.) The triangles aren't increasing by the same number.
So the triangles aren't similar