The set of points (x,y) such that: a - δ ≤ x ≤ a + δ, b − δ ≤ y ≤ b + δ determines?

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The set of points (x,y) such that: a - δ ≤ x ≤ a + δ, b − δ ≤ y ≤ b + δ determines? Answer: A square

The set of points \((x,y)\) such that \(a-\delta \le x\le a+\delta \) and \(b-\delta \le y\le b+\delta \) determines a square.

Question context

This question is part of 📐 Geometry within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.