Question

Please check this
Find the diameter of the cylinder when:

Answer 1

Volume=\[12320cm ^{3}\]height=20cm

Answer 2

im getting \[r^{2}=196\]

Answer 3

Volume of cylinder = pi*r^2*h
pi*196 *20 = 12315 which is not quite 12320 but pretty close to it

Answer 4

I'll quickly try working the formula for the volume of cylinder again:
Volume of cylinder = pi*r^2*h
12320=pi*r^2*20
Which gives: 616 = pi*r^2
Therefore pi^2 = 196.078889 which is probably what you've gotten. The only problem here is rounding issues. I'd round the number up to 197 you'd probably get a more accurate answer.

Answer 5

i need the diameter

Answer 6

@mathslover