正三角形边长为x,则面积=x^2*sqrt(3)/4 = 4sqrt(3)
x^2 = 16
x = 4
高为2sqrt(3)
当x=2sqrt(3),y = sqrt(4sqrt(3)p) = 2
p = 1/sqrt(3)
y^2 = 2x/sqrt(3)sprt？