Find and equation of the circle with center at (0,0) that passes through the poijt (5,2)

Answer 1

Which method have you been taught to find the circle for this basic question?

Answer 2

I haven't learned how to do this.

Answer 3

I don't understand.
Are you in a course where this on the curriculum?

How do they expect you to do this if you have not learned it, or have not been taught?

Answer 4

I don't know but that's why I'm asking on this website.

Answer 5

basic equation with centre (0,0) and radius r is
x^2 + y^2 = r^2
since (5,2) lies on this
25 + 4 = r^2 = 29

x^2 + y^2 = 29