McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
6. Surface Areas and Volumes of Spheres
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Exercise 37 Page 853

A great circle is a circle on a sphere with the same radius as the sphere. It is also the largest circle that can be drawn on the sphere.

Example Answer: A circle ⊙ S through A, B, C, and D

Practice makes perfect

Let's analyze the given sphere.

We are asked to name a great circle on the given sphere. A great circle is a circle on a sphere with the same radius as the sphere. It is also the largest circle that can be drawn on the sphere. We can see three great circles.

  • A circle ⊙ S through A, B, C, and D.
  • A circle ⊙ S through C.
  • A horizontal circle ⊙ S.

We can use any of these great circles as our answer.