What is the are of an equilateral triangle of side 16 cm?
Options:
(A) 66√3 cm2
(B) 74√3 cm2
(C) 64√3 cm2
(D) 64√5 cm2
(E) 14√3 cm2 Hmmm, my stream of consciousness:
user
Area of an equilateral triangle = √3/4 S2
If S = 16, Area of triangle = √3/4 * 16 * 16 = 64√3 cm2; So, the answer is (D).
assistant