Answer:
The two dimensional shape is circle.
Explanation:
We are a given a cylinder and we need to cut cylinder parallel to base.
As we know shape of base of cylinder is circle.
Ends are circular of any cylinder. If we cut cylinder parallel to base then we get two new cylinders.
Cross section of cylindrical ends are circular.
Two-dimensional shape of cross section would be circle.
Please see the attachment to see the cross section.
Hence, The two dimensional shape is circle.