Difficulty: Easy
Correct Answer: 15:16
Explanation:
Introduction / Context:For similar figures like squares, side lengths scale with the square root of area scale. Perimeter is linear in side length.
Given Data / Assumptions:
Concept / Approach:Side ratio = √(area ratio) = 15:16. Perimeter ratio equals side ratio.
Step-by-Step Solution:
√225 = 15; √256 = 16.Perimeter ratio = 15 : 16.Verification / Alternative check:Pick side lengths 15 and 16; perimeters are 60 and 64 ⇒ 15:16.
Why Other Options Are Wrong:25:16 confuses area with perimeter; 16:15 inverts; 17:16 is unrelated.
Common Pitfalls:Forgetting that perimeter is linear, not quadratic.
Final Answer:15:16.
Discussion & Comments