Question

please answer this question please​

Answer 1

Answer:

your answer is as follows

pls mark it as brainliest

Step-by-step explanation:

$to \: find : \\ length \: of \: side \: of \: an \\ equilateral \: triangle \\ \\ so \: we \: know \: that \\ area \: of \: equilateral \: triangle = \\ \frac{ \sqrt{3} }{4} \times side {}^{2} \\ \\ 9 \sqrt{3} = \frac{ \sqrt{3} }{4} \times s {}^{2} \\ \\ 9 \times 4 = s {}^{2} \\ \\ = 36 \\ \\ taking \: square \: roots \: on \: both \: sides \\ we \: get \\ \\ side = 6.cm$

Answer 2

Answer:

6 cm

Step-by-step explanation:

The area of an equilateral triangle = $\frac{\sqrt{3}a^{2} }{4}$

               $\frac{\sqrt{3}a^{2} }{4} = 9\sqrt{3}\\\\a^{2} = \frac{9\sqrt{3} * 4 }{\sqrt{3} } \\\\a^{2} = 36\\\\a = 6 cm$