Question

The centroid of equilateral triangle is (0,0) and length of altitude is 6.The equation of circumcircle of triangle is ?

Answer 1

Equation of circumcircle: x^2 + y^2 = 16

Answer 2

1. Find the radius of the circumcircle
2. Substitute the center and the radius into the general equation \((x-a)^2+(y-b)^2=r^2\), where the center is \((a,b)\) and the radius is \(r\)