Respuesta :

Answer:

5.66

Step-by-step explanation:

The sides of a square are equal. Let's call the length  

x

Use Pythagoras' Theorem.

Square the sides and add them together....

x

2

+

x

2

=

8

2

2

x

2

=

64

x

2

=

64

2

=

32

x

=

32

x

=

4

2

x

=

5.66