Geometry

Question Analysis:
This question requires you to analyze the structure of several 3D solids based on verbal descriptions.
The main focus is distinguishing prisms from non-prisms, especially cones, pyramids, and cylinders.

Key Concept Explanation:
A prism:
Has two parallel, congruent polygonal bases
Has lateral faces that are parallelograms
Can be right (vertical sides) or oblique (slanted sides)
Bases must be polygons, not curves

Step-by-Step Solution:
A:
– 2 rectangle bases
– 4 rectangles as side faces
– All vertical
→ ✅ Right rectangular prism
B:
– 2 triangle bases
– 3 slanted parallelogram sides
→ ✅ Oblique triangular prism
C:
– 1 hexagon base
– Faces meet at a single point
→ ❌ This is a hexagonal pyramid
D:
– 2 circular bases
– Curved side
→ ❌ This is a cylinder, not a prism
E:
– 2 trapezoid...