Which statement is correct about a sphere?

It has exactly one great circle.

The radius of its great circle is half the radius of the sphere.

The diameter of its great circle is the same as that of the sphere.

Its great circles have different areas.

Question

Which statement is correct about a sphere?

It has exactly one great circle.

The radius of its great circle is half the radius of the sphere.

The diameter of its great circle is the same as that of the sphere.

Its great circles have different areas.

anonymous · Answer

The diameter of its great circle is the same as that of the sphere.

anonymous · Answer

take a look http://mathworld.wolfram.com/GreatCircle.html

anonymous · Answer

awesome thanks!