Area of an equilateral triangle = √3/4 S2
If S = 16, Area of triangle = √3/4 * 16 * 16 = 64√3 cm2;
What is the are of an equilateral triangle of side 16 cm?

1: 66√3 cm2
2: 74√3 cm2
3: 64√3 cm2
4: 64√5 cm2
5: 14√3 cm2