Let's be very careful here: The "great circle" of a sphere is a circle that lies on the surface of
the sphere, so there's no way the great circle can "pass through" the sphere's center.
However, in order for the circle to be a "great circle", its center must be the center of the sphere.
Sure.A circle is the shape of every possible CUT through a sphere with a flat knife.
Every cross-section of a sphere is a circle.
It is the center of the circle
A circle has a round shape in which every point on the circle is the same distance from one point called "the center". The center of a circle is not on the circle.
The precise definition of the word 'centres' is the middle point of a circle or a sphere. This means the point is an equal distance from every point on the circle/sphere.
No. Every circle on the sphere whose center is also the center of the sphere is a great circle. If the circle's center is not also the center of the sphere, then the circle is a small circle.
A 'great circle' is any circle on the surface of a sphere that has its center at the center of the sphere. The equator is the only parallel of latitude that's a great circle. Every meridian of constant longitude is a semi-circle, and together with the one directly opposite it, they form a great circle. The shortest distance between two points on a sphere is the piece of the great circle through them.
Sure.A circle is the shape of every possible CUT through a sphere with a flat knife.
Every cross-section of a sphere is a circle.
A radius of 2 meters refers to the distance from the center of a circle or sphere to its outer edge. This means that if you were to draw a circle with a radius of 2 meters, every point on the circle would be exactly 2 meters away from its center. The diameter of such a circle would be 4 meters, as the diameter is twice the radius.
Every diameter of the circle.
... center of the circle.
It is the center of the circle
A circle has a round shape in which every point on the circle is the same distance from one point called "the center". The center of a circle is not on the circle.
The precise definition of the word 'centres' is the middle point of a circle or a sphere. This means the point is an equal distance from every point on the circle/sphere.
No. The chord is a diameter only if it passes through the center of the circle. In that case,it's also the longest that any chord can possibly be in that circle.
Every section of a solid sphere is a filled-in circle, i.e. a disk with zero thickness.