Help with any please !! And explain

Answer:
1.C
2.A
3.B
5.C
6.A
Step-by-step explanation:
Congruent means the same so #1 is c
similar means same shape different size so #2 is A
B is the same shape different size of its b
5 is (4,2) so c
6 is (5,6) so a
hope this helps!