Home › CBSE Class 11 (Commerce) › Mathematics › Conic Sections › Which equation gives a circle with centre (h, k)…
Which equation gives a circle with centre (h, k) and radius r?
A(x + h)² + (y + k)² = r²
B(x - h)² + (y - k)² = r²
C(x - h)² - (y - k)² = r²
D(x - h)² + (y - k)² = r
Answer & Solution
Correct answer: B. (x - h)² + (y - k)² = r²
The distance formula applied to |CP| = r and then squared gives (x - h)² + (y - k)² = r².
Related questions