a. 1145 cm^3
b. 1505 cm^3
c. 2123 cm^3
d. 2578 cm^3

Hey there :)

We do this the same way like the previous question

The large cylinder's volume

V = r²h
40,635 = r²(18)

2257.5 = r²
= r²
r = 
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.

= r
r = 8.9 cm (radius of small cylinder)

V (small cylinder) = (8.9)²(6)  
                             = 1505 cm³

Your answer will be B) 1505 cm³