648 divided by 8 is 81.
64 goes into 8 8 times (8*8)
8 goes into 8 1 time (8*1)
The Formula's for a cylinder is V=

r^2h and the volume of a Cone is V=1/3

r^2h. So you would know that the volume of a cone is 1/3 the volume of a cylinder.
Answer: These are called rigid transformations because the structure and shape of the shape remains the same.
Step-by-step explanation: The word rigid and rigidity is often used to describe something that is tough or the strength of something. The transformations might be called a rigid transformation because the rigidity of the shape remains the same because the size is the exact same, it is the exact same shape it is just moved.
Answer:
B: 3:8
Step-by-step explanation:
3x8=21
1x2=2
3x4=16
22x32=424