Step 1: Understanding design forms.
In design, geometric forms such as circles, squares, and triangles are often used for symmetry, balance, and visual appeal. Angles, however, are typically not considered a suitable form for design, as they may disrupt the visual harmony.
Step 2: Analyzing the options.
- (a) Circle: Circles are commonly used in design because of their symmetry and aesthetic appeal.
- (b) Square: Squares are also commonly used in design for their balance and straightforward geometry.
- (c) Triangle: Triangles are often used in design to create dynamic compositions and movement.
- (d) Angle: Angles, by themselves, are typically not used in design as they do not create the same harmonious effect as the other shapes.
Step 3: Conclusion.
The correct answer is (d) Angle, as it is not a form typically used in design.
Final Answer:
The correct answer is (d) Angle.