Question

one side of an equilateral triangle is 4cm find is area

Answer 1

$4 \sqrt{3}$

Answer 2

Side of triangle = 4 cm

$area \: = \frac{ \sqrt{3} }{4} \times {side}^{2} \\ \\ = \frac{ \sqrt{3} }{4} \times {4}^{2} \\ \\ = \frac{ \sqrt{3} \times 16 }{4} \\ \\ = 4 \sqrt{3} \\ \\ = 4 \times 1.732 \\ \\ = 6.928$