Step-by-step explanation:
I think your question is missed of key information, allow me to add in and hope it will fit the original one.  
Please have a look at the attached photo.  
My answer: 
To find which cylinder has the greater volume, we need to find out the volume of each one. 
As we all know that the formula used to determine the volume of a cylinder is: 
V = The base area*the height 
<=> V = π h (cubic units)
h (cubic units) 
For example, in my attached photo, we will use this formula to find the volume of each one. 
The base area = π = π
 = π = 38.46 square in
 = 38.46 square in 
The height = 8.5 in 
=> the volume of Cylinder A 
= The base area*the height 
= 38.46*8.5 
= 326.91 cubic in 
The base area = π = π
 = π = 22.89 square in
 = 22.89 square in 
The height = 11 in 
=> the volume of Cylinder A 
= The base area*the height 
= 22.89*11
= 251.79  cubic in 
Hence, Cylinder B has the greater volume