Answer:
a) Ellipse
b) Sphere
c) Great circle
d) Triangle
e) Circle
Step-by-step explanation:
A) Diagonal cross section of cylinder
Ellipse
B) Shape created when a semi circle is rotated about y axis
Sphere
C) Diagonal cross section through the widest part of sphere
Great Circle
D) Perpendicular cross section of cone
Triangle
E) Cross section parallel to the base of cone
Circle.
