Geography
A great circle is a circle drawn on the surface of a sphere with radius :
- equal to the radius of the sphere.
- equal to half the radius of the sphere.
- larger than the radius of the sphere.
- less than the radius of the sphere.
Related Questions
What is Standard Time?
- Uniform time based on a central meridian.
- Time at 0° longitude
- Time at 82°30'E
- Time at 7½° longitudes at 12 noon.
Which of the following is true about the International Date Line?
- It goes zig-zag at two points.
- The date changes as one moves across it.
- It is opposite the Prime Meridian.
- All of the above.
Which of the following are great circles?
- Lines of Longitudes
- Lines of Latitudes
- Equator
- Both (1) and (3)
In each hemisphere for which latitude the length of the circle is half the length of the Equator?
- 30°
- 45°
- 60°
- 90°