The equation represents a circle

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

The equation x2+y2−4x+6y−12=0x^2 + y^2 - 4x + 6y - 12 = 0 represents a circle. What is its radius? (a) 12\sqrt{12} (b) 55 (c) 13\sqrt{13} (d) 44

Related theory

Browse the problem library