What is the value range of | Z | if the complex Z satisfies | Z-I | = 2 The geometric meaning of complex number is not very clear

What is the value range of | Z | if the complex Z satisfies | Z-I | = 2 The geometric meaning of complex number is not very clear

|Z-I | = 2 represents a circle with (0, - 1) as its center and 2 as its radius
Obviously, the maximum distance from a point on the circle to the origin is 1 + 2 = 3, and the minimum distance is 2-1 = 1
That is, the value range of | Z | is [1,3]