Скачать или смотреть JEE Mains 2021 PYQ | Centres of Circles Form Which Quadrilateral? | Coordinate Geometry Trick

📘 JEE Mains 2021 Official PYQ – Complete Breakdown!
In this video, we solve a beautifully conceptual PYQ from Coordinate Geometry (Circles) asked in JEE Mains 2021.

The question provides four circles:
• M:  x² + y² = 1
• N:  x² + y² – 2x = 0
• O:  x² + y² – 2x – 2y + 1 = 0
• P:  x² + y² – 2y = 0

We find their centres, join them in order, and identify what quadrilateral they form.

⭐ What We Cover:

✔ Converting general form to standard form of a circle
✔ Finding centres quickly using completing the square
✔ Distance between points
✔ Condition for quadrilateral to be a square / rectangle / rhombus / parallelogram
✔ Fast logic used by toppers in JEE Mains

🧠 KEY RESULT:

Centers are:
• M → (0, 0)
• N → (1, 0)
• O → (1, 1)
• P → (0, 1)

These four points clearly form a SQUARE 🔵
→ Correct answer: Square (Option B)

🎯 Best For:
• JEE Mains Aspirants (2025 & 2026)
• Students revising Coordinate Geometry
• Those solving previous year questions for guaranteed score boost

Mastering these PYQs can help you secure 95+ percentile in Maths with ease.

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