Question

find the area of equilateral triangle with sides 2root3cm .herons formula​

Answer 1

Step-by-step explanation:

$we \: know \: that \\ \: the \: area \: of \: equilateral \: triangle \\ = \frac{ \sqrt{3} }{4} ({side})^{2} \\ side = 2 \sqrt{3} \: cm \\ area = \frac{ \sqrt{3} }{4} ({2 \sqrt{3} })^{2} \\ = \frac{ \sqrt{3} }{4} \times 12 \\ = 3 \sqrt{3 } \: {cm}^{2}$