Question

The chord XY is a diameter of of O. True or false?

Answer 1

False, XY is not a diameter

Explanation:

To be a diameter, it must go through the center of the circle, which is point O

The chord XY does not pass through the point O, so XY cannot be a diameter

Answer 2

False

Explanation:

XY is the diameter of the circle with the centre of this circle being O.

But O on it's own is just a coordinate, and not the circle.