Answer:
Two objects are similar if they have the same shape.
(1): Two objects are similar if they have the same shape.
(2): Two objects are congruent if they have the same shape and size.
(3): Two objects are congruent if they have the same shape and size.
(4): Two objects are congruent if they have different shapes and sizes.
Hope this helps! I'm sorry if it's wrong. If you need more help, ask me! :]