Question

which one to select please answer
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Answer 1

Answer:

10cm is your answer....

Answer 2

$a = \frac{ \sqrt{3} }{4} {side}^{2} \\ \\ 36 \sqrt{3} = \frac{ \sqrt{3} }{4} {side}^{2} \\ \\ 36 \times 4 = {side}^{2} \\ \\ 6 \times 2 = side \\ \\ 12 = side$