Which shape is commonly used to show a window?

Square or rectangle

A window is commonly shown as a square or rectangle because many ordinary windows have four straight sides and four corners. These shapes are easy to draw and make the object immediately recognisable. A window may also have a circular, arched, or irregular design in real buildings, but the square or rectangle is the usual basic form expected in an elementary art question. The answer refers to common representation, not to every possible window design.

Option A is correct because it includes both square and rectangle, the common geometric forms used for windows. Option B is incorrect because a spiral is not the usual basic shape for a window. Option C is too limited and does not describe the normal classroom symbol. Option D is incorrect because a single dot cannot show the frame or opening of a window. Therefore, option A best matches ordinary visual representation.

This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Shape.