Question

Please help!

A. 1145 cm^3
B. 1505 cm^3
C. 2123 cm^3
D. 2578 cm^3

Answer 1

B.) 1505 cm^3
I hope this helps. (^_^)

Answer 2

Hey there :)

We do this the same way like the previous question

The large cylinder's volume

V =
`\pi`r²h
40,635 =
`\pi`r²(18)

`(40635)/(18) = \pi r^2`
2257.5 =
`\pi`r²

`(2257.5)/( \pi )` = r²
r =
`\sqrt{ (2257.5)/( \pi ) }`
r = 26.8 cm

The ratio from big cylinder to the small one is:
18 : 6
This means the big cylinder is 3 times bigger than the small cylinder.


`(26.8)/(3)` = r
r = 8.9 cm (radius of small cylinder)

V (small cylinder) =
`\pi`(8.9)²(6)
= 1505 cm³

Your answer will be B) 1505 cm³