Step 1: Understanding design elements.
Design elements include point, line, shape, and form, each representing different levels of visual perception.
Step 2: Differentiate between terms.
- Point: Indicates position, no dimension.
- Line: Has length and direction, but no volume.
- Shape: A 2D area enclosed by lines, flat in nature.
- Form: A 3D object with height, width, and depth; it has volume and thickness.
Step 3: Conclusion.
Thus, a 3-dimensional object having volume and thickness is known as Form.