Answer:
h = 12 cm
Step-by-step explanation:
The formula is close, you forgot to include h as part of the volume for the cylinder. The given radius is 3, so plug that in.
The equation is
339.12 = 3.14(3^2)h
Step 1: Which simplifies to
339.12 = 3.14(9)h
and further simplifies to
339.12 = 28.26h
Step 2: divide 339.12 by 28.26 to isolate h
12 = h
The height is 12cm
