Side of an equilateral triangle is 12 cm. What will be the radius of incircle of this equilateral triangle?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. .
Height (h) = (√3/2) × 12 = 6√3 cm
Radius (r) of the incircle = h/3 = (6√3)/3 = 2√3 cm