Difficulty: Easy
Correct Answer: 4 times
Explanation:
Introduction / Context:Square perimeter is proportional to side length, and area scales with the square of side length. Doubling the perimeter doubles the side; the area therefore quadruples. This item reinforces the linear–quadratic linkage between perimeter and area.
Given Data / Assumptions:
Concept / Approach:Compute sides from perimeters, then compare areas. Because s2/s1 equals P2/P1, area ratio equals (P2/P1)^2. Here P2/P1 = 2, so area ratio = 4 : 1 (larger : smaller).
Step-by-Step Solution:
s1 = 12/4 = 3 cm; A1 = 9 cm^2.s2 = 24/4 = 6 cm; A2 = 36 cm^2.A2/A1 = 36/9 = 4.Verification / Alternative check:
Using ratio method: (P2/P1)^2 = (24/12)^2 = 2^2 = 4.Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:4 times.
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