Answer:
Step-by-step explanation:
Given that a two dimensional shape can be rotated about the y-axis to create a cylinder which has a smaller diameter than height
Whenever a vertical line with equation x=a is rotated about y axis from y =b to y=c we get a right circular cylinder.
The cylinder would have radius as a and height as c-b
Whenever we want the diameter to be less than height we must select a,b,c such that
2a <b-c
In this case we would get the required type of cylinder.
