The following triangles are: similar not enough information to decide neither congruent or similar congruent

Step 1 ：Let the angles of the triangle be $n-d$, $n$, and $n+d$ in arithmetic progression.

Step 2 ：The sum of the angles in a triangle is 180 degrees, so we have $180 = n-d+n+n+d = 3n$.

Step 3 ：Solving for $n$, we get $n=60$.

Step 4 ：The sum of the degree measures of two angles of a triangle is less than 180, so we have $180 > n + (n+d) = 120 + d$.

Step 5 ：This implies that $0

Step 6 ：Since there is no information about the side lengths of the triangles, we cannot determine if they are congruent or similar.

Step 7 ：\(\boxed{\text{not enough information to decide}}\)