cone volume = (pi*r*r*h)/3 where r is radius and h is height Put in what we know pi is about 3.1415 4 = (3.1415*3*3*h)/3 4 = 28.274*h/3 4 = 28.274/3*h 4 = 9.425*h h = 4/9.425=0.424 and that would be in inches so Height is about 0.424 inches. It can be rounded to 0.42
