Side of an equilateral triangle is 12 cm. What will be the radius of incircle of this equilateral triangle ?

3 cm  $4\sqrt{3}$ cm 4 cm  $2\sqrt{3}$ cm

$2\sqrt{3}$ cm

Side = 12 Inradius of the equilateral triangle = \(\frac{a}{2\sqrt{3}}\)                                                  = \(\frac{12}{2\sqrt{3}}\) = $2\sqrt{3}$ cm