If each side of an equilateral triangle is 12 cm, then its altitude is equal to:

$3\sqrt{6}$ cm $3\sqrt{2}$ cm $6\sqrt{3}$ cm $6\sqrt{2}$ cm

$6\sqrt{3}$ cm

Given, The side of a equilateral triangle = 12cm then the height or altitude = \(\frac{\sqrt {3}}{2}\) × (side)   = \(\frac{\sqrt {3}}{2}\) × (12)   = $6\sqrt{3}$ cm