Answer :
Let the length of the side be s and the length of the diagonal be d.
d^2 = 2s^2
[tex]d= \sqrt{2} s[/tex]
[tex]15 \sqrt{2} = \sqrt{2} s[/tex]
s = 15
The answer is 15 cm.
d^2 = 2s^2
[tex]d= \sqrt{2} s[/tex]
[tex]15 \sqrt{2} = \sqrt{2} s[/tex]
s = 15
The answer is 15 cm.