Which term describes equal position, size, and shape of parts on either side of an axis?

The term that describes equal position, size, and shape of parts on either side of an axis is symmetry. In design and architecture, symmetry is often used to create a sense of harmony and cohesiveness. It involves mirroring elements around a central line or point, resulting in a balanced and aesthetically pleasing structure. Symmetry can evoke feelings of order and stability, making it a fundamental principle in various forms of art and design.

On the other hand, asymmetry refers to a lack of equality and balance between parts, which can create a different kind of visual interest but does not fulfill the criteria of equal representation on either side of an axis. Proportion relates to the relationship in size between different elements but does not specifically address their arrangement around an axis. Balance, while important in design and often related to symmetry, describes the overall distribution of visual weight within a composition rather than specifying equal characteristics on either side of an axis. Thus, symmetry is the precise term to describe this equality in design.