Geometry

Question Analysis
This question asks the student to identify a cone from visual descriptions of four 3D shapes.
The main focus is comparing features like base shape, surface type, and apex structure.

Key Concept Explanation
A cone must have:
One circular base
A smooth curved lateral surface
A single apex where the surface converges
Other solids with similar partial features (like two bases or flat faces) are not cones.

Step-by-Step Solution
Option A: Two circular bases = cylinder
Option B: Square base + flat triangles = square pyramid
Option C: One circular base + curved ...