What is the are of an equilateral triangle of side 12 cm?	Choose the correct choice.
A) 64√5 B) 64√9 C) 64√4 D) 36√3 E) 64√2
Area of an equilateral triangle = √3/4 S2   If S = 12, Area of triangle = √3/4 * 12 * 12 = 36√3 cm2;   Answer: 36√3
<result>D</result>
What is the are of an equilateral triangle of side 12 cm?