Answer:
Proportion is the aspect in design theory that describe the relationship of one object to another object in size.
Step-by-step explanation:
Proportion is an important aspect in design theory in terms of size. It refers to the relationship between object of the design in terms of size. The relation between size of different object in design theory can describe as, if the size of one object increases or decreases, it may leads to change in size of other object. It is called proportion.
If the size of one object increase with the size of other object, the relation is called direct proportion. If the size of one object decrease with the increase in size of other object is called inverse proportion.