✔ 最佳答案
v = l*w*h
v / (l*w) = (l*w*h) / (l*w)
v /(l*w) = h
h = v / (l*w)
When you divide the circumference of a circle by its diameter you always get the same number. This number is called pi and it is 22 / 7 or 3.14.
A = pi*r^2 is the formula that is used to find the area of a circle given its dimeter/radius.