Geometry

Question Analysis

This question involves determining which of the given 2D nets cannot be folded into a 3D figure. The main focus is on understanding the characteristics and requirements of different 3D-shape nets.

 

Key Concept Explanation:

Nets of 3D Shapes: A net is a 2D pattern that, when folded, forms a 3D shape. For a valid net, the faces must be arranged in such a way that they can be joined without overlapping or leaving gaps to form a closed 3D object.

 

Option Analysis

Option D is not a valid 2D nets for a cylinder. The net of a cylinder consists of three parts: a rectangle and two circles. The two circles are usually placed above and below the rectangle when visualized as a net, but sometimes shown beside it in diagrams as shown below.

The other nets are valid: