Answer:
Point Y is the center of the circle that passes through points D, E, and F.
Step-by-step explanation:
So.. if you notice the picture below
is really just 3/4 of a cylinder, or, a full cylinder, and then you slice 1/4 off of it
notice the right-angle in your picture at the bottom, is cut at a right-angle, meaning, the cutout is 1/4 of the volume
so
Answer:
The answer is would be 1.2 or 1.22