Side of an equilateral triangle is 12 cm. What will be the radius of incircle of this equilateral triangle ?
Answer & explanation
Correct answer: option 4
Side = 12
Inradius of the equilateral triangle = \(\frac{a}{2\sqrt{3}}\)
= \(\frac{12}{2\sqrt{3}}\) = $2\sqrt{3}$ cm