Geometry

Question Analysis
This question assesses a student's ability to identify cone-like shapes in real-world objects.
The main focus is understanding the structural features of cones across different contexts.

Key Concept Explanation
Cone characteristics:
One circular base
A curved surface tapering to a single point (apex)
No polygonal base or flat triangular lateral faces

Step-by-Step Solution
A. Megaphone → wide circular base, narrows toward the mouthpiece (can resemble an oblique cone) → ✅
B. Party hat → classic cone structure (base + apex) → ✅
C. Tin can → cyl...