What is the area of the equilateral triangle if the base BC=6? 
সমাধান
সঠিক উত্তর: Option A
If a represents the side of an equilateral triangle, then its area = (a2√3)/4
Thus,
Here, the area = (6)2 * √3 /4
= 36 * √3 /4
= 9√3
