Question 599594
Given an equilateral triangle with side length 's', the height h is


{{{h = (s/2)sqrt(3)}}}


In this problem, s = 12, so....


{{{h = (s/2)sqrt(3)}}}


{{{h = (12/2)sqrt(3)}}}


{{{h = 6*sqrt(3)}}}


{{{h = 10.3923}}} 


So the approximate answer is choice B) 10.4 cm