V=1/3ah, V=21,h=3, solve

Answer 1

Since we're given the values of V and h, we'll solve for a:
V = (1/3)ah
3V = ah
3V/h = a
a = 3V/h
a = 3*21 / 3
a = 21

hope this helps :3

Answer 2

Thanx Jai...