# Math Help - Similar volumes

1. ## Similar volumes

A rectangular tray has length 60cm, width 40cm and depth 2cm. It is full of water. The water is poured into an empty cylinder of diameter 8cm
Calculate the depth, in cm of water in the cylinder. Answer to 3 sig figs.

I did
60*40*2= $\pi 4^2h$
$4800=16\pi h$
$\frac{4800}{16\pi}=h=942.3777961=942
$

correct?

2. method correct
calculation wrong

3. Originally Posted by nikhil
method correct
calculation wrong
is 95.4 correct?

4. 95.454 cm but since 3 significant digit required so 95.4