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A great circle is a circle on the surface of the earth, the plane of which passes through the center of the earth. Which of the following statements regarding Great Circles are NOT correct?
1. All latitudes form Great circles.
2. Only one longitude forms a Great Circle.
3. A great circle divides the earth into two equal halves.
Select the code from following:
1&2 only
3 only
1&3 only
All of the above
Great Circle A great circle is the largest possible circle that can be drawn around a sphere. All spheres have great circles. If you cut a sphere at one of its great circles, you'd cut it exactly in half. A great circle has the same circumference, or outer boundary, and the same center point as its sphere. The geometry of spheres is useful for mapping the Earth and other planets. The Earth is not a perfect sphere, but it maintains the general shape. All the meridians on Earth are great circles. Meridians, including the prime meridian, are the north-south lines we use to help describe exactly where we are on the Earth. All these lines of longitude meet at the poles, cutting the Earth neatly in half. The Equator is another of the Earth's great circles. If you were to cut into the Earth right on its Equator, you'd have two equal halves: the Northern and Southern Hemispheres. The Equator is the only east-west line that is a great circle. All other parallels (lines of latitude) get smaller as you get near the poles.
By: Shubham Tiwari ProfileResourcesReport error
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