Analogy — “Oval : Circle :: Rectangle : ?”. Choose the figure that is a special case of the first, preserving the “general shape → special case” relation.
Correct Answer: Square
Introduction / Context:The pair “Oval : Circle” can be read as “general shape → special case.” A circle is a special kind of oval (in informal usage; more precisely, a circle is a special ellipse with equal axes). We must find a parallel relation for “Rectangle : ?”.
Given Data / Assumptions:
- Maintain the direction: broader class → special instance.
- All terms should belong to the 2D shape family.
Concept / Approach:Among plane figures, a square is a special rectangle (all sides equal, angles 90°), fitting the same class–subclass relation as circle to oval/ellipse.
Step-by-Step Solution:
Identify the special case of a rectangle → square.Eliminate unrelated terms (properties or different classes).Verification / Alternative check:Geometric hierarchy confirms square ⊂ rectangle.
Why Other Options Are Wrong:They are not special cases of rectangles or are unrelated properties.
Common Pitfalls:Confusing shape properties (diagonal, periphery) with shapes.
Final Answer:Square