Question

3. If diagonal of a square is 13 cm then find its side.
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Answer 1

the above attachment is the right answer of the question

Answer 2

Answer:

$6.5 \sqrt{2} \: cm$

Step-by-step explanation:

Diagonal = 13 cm

$\sqrt{2x} = 13 \\ x = \frac{13}{ \sqrt{2} } \\ x = \frac{13 \sqrt{2} }{2} \\ x = 6.5 \sqrt{2} \: cm$