Answer:
[tex]13 \: \: yd[/tex]
Step-by-step explanation:
[tex]area \: \: \: of \: \: a \: \: square \\ 169= l \times b \\ 169 = x \times x \\ 169 = {x}^{2} \\ [/tex]
So,
[tex] {x}^{2} = 169 \\ x = \sqrt{169} \\ x = 13 \: \: yd[/tex]
hope this helps
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