Question

what is the use of congruence in daily life . Atleast 2 example
plz answer it

Answer 1

We see many congruent shapes in our day to day life:
Biscuits of same pack
Sheets of same letter pad
Tennis balls of same brand and rare
Two same mobile phones etc.

Some examples of congruent shapes r:-

pages of a book.

two coins of same value

Chocolates of same brand

and many more......

with all that u can see, our hands(palm) are also congruent. 

Thanks.........!!!

Answer 2

The use are-

Generally it means 'agreeing'

Congruence of religious affiliation increase the stability of a marriage.

And the image that you saw in mirror is congruent