M and O are congruent
N, M and O are similar
Your answer is: M and N are similar but not congruent
M and N are similar because the sides of M are proportional to sides of N:
![(2)/(4)=(1)/(2)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/3vqwdh4nb1pamhnvaoueljfnf1hb9kbdr5.png)
Two figures are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.