The correct matches are as follows:
1. Diagonal cross section of a cylinder
c.ellipse
2.Cross section parallel to the base of a cone
d.circle
3.Shape created when a semi-circle is rotated about the y-axis
e.sphere
4.Diagonal cross section through the widest part of a sphere
b.great circle
5.Perpendicular cross section of a cone
a.triangle
Hope this answers the question. Have a nice day.
