A great circle is any circle on the surface of a sphere whose center is at
the center of the sphere. The shortest distance between two points on the
surface of a sphere is a part of the great circle that passes through them.
In geometry it is called the "Great Circle".
The circumference.
The horizon is the great circle on the sky midway between the celestial poles.
The reason they call the equator the great circle is because circles the whole earth in the middle.becase its the only line that runs in the centre of the earth and goes right arround . {nickstar}
A line in Riemann's spherical geometry is called a great circle, which is the intersection of a sphere with a plane passing through its center. Great circles are the equivalent of straight lines in this non-Euclidean geometry.
The Great Circle
It is called a great circle and the plane that circle makes must pass through the geometric center of the globe. The largest circle that can be drawn round the Earth is the great circle round its middle, the "equator" this is because the spinning of the earth makes it 'fatter' round the middle.
The Line that divides the earth into two is called the great 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.
Any circle on the Earth's surface whose center is at the center of the Earth is called a "great circle". Any circle with its center anywhere else is called a "small circle". Spiritually, many consider the kaaba (Mecca) to be the center of the Earth's surface.
a hemisphere
The imaginary circle around the earth that divides it into two halves is called the Equator. It is located at 0 degrees latitude and serves as the starting point for measuring latitude.