Find the area of an equilateral triangle whose sides are 12 cm.

38 $29\sqrt{29}$ $45\sqrt{2}$ $36\sqrt{3}$

$36\sqrt{3}$

Side of a equilateral triangle = 12cm Area = \(\frac{\sqrt {3}}{4}\) × (side)2 = \(\frac{\sqrt {3}}{4}\) × (12)2 = $36\sqrt{3}$