YES. A small circle is simply a circle around the earth that does not fly over the direct opposite place on earth that a plane took off from.
A great circle goes full circumference of earth, where a small circle does not. Being a circle they both fly in a constant direction.
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the earth is a sphere but if you look at it as a 2d shape it is a circle
The circumference of the small circle would be 18.84.
Yes it is. Pie = 3.14 or a half circle is 180 degree's where as a full circle is 360 degrees. I fly small aircraft an we always make incomplete circles, it used everyday in the world with engineers and mathematicians. Each quarter circle is 90 degrees, multiplied by 4 equals 360 degrees which is a whole circle. Hope this helped you. John U.
For the small circle of diameter 6, the circumference is 18.84.
radius of any circle = diameter/2