Question

Which statement is correct about a sphere?


It can have only one great circle.
The area of its great circle is double that of the sphere.
Its great circle divides it into two identical hemispheres.
The diameter of a great circle is half the diameter of the sphere.

Answer 1

Its the 3rd one. The great circle is the largest circle which can drawn around the sphere.
It divides the sphere into two equal hemispheres

See Picture: http://en.wikipedia.org/wiki/Great_circle
You will understand immediately

Answer 2

That's what i got :D

Answer 3

Thanks