Question

Are the two triangles similar? How do you know?
I think it's yes by SAS

Answer 1

do you know different tests for similarity of triangles ?

Answer 2

Or is it SSS?

Answer 3

those are tests for congruency of triangles!
not for similarity...

Answer 4

given that angle <H=<K
and the vertically opposite angles at M are equal
and hece the remaining angles must be equal
hence the triangles are similar

Answer 5

Ohhh @hartnn

Answer 6

so what are they for similarity ?

Answer 7

AA?

Answer 8

yes, and i mean, if they are congruent, then they are similar too...so SSS and SAS can be considered tests for similarity too.
and yes, AA is a valid test for similarity
AA is same as AAA
because when 2 pair of angles in 2 triangles are equal,
the 3rd pair is automatically equal

Answer 9

Thank you

Answer 10

so in all 3 tests for similarity
SSS, SAS, AA(or AAA)
and welcome ^_^

Answer 11

okk that makes sense and I see what my mistake was