# Spheres: Basic Terminology

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## You'll practice defining terms related to spheres and identifing parts of spheres.

Created Date 06.16.15
Last Updated 06.16.15
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Topics of this game:
• A surface whose points are all equidistant from a given point is called a ________.
• The point from which all points on a sphere are equidistant is called the ________ of the sphere
• The distance from the center of a sphere to any point on the sphere is called the ________ of the sphere.
• The length of a line segment passing through the center of a sphere with its endpoints on the sphere is called the ________ of the sphere.
• The intersection of a plane and a sphere is called a/an ________ of the sphere.
• If a plane intersects a sphere and does not pass through the center of the sphere, the intersection of the plane and the sphere is called a ________ circle of the sphere.
• If a plane intersects a sphere and passes through the center of the sphere, the intersection of the plane and the sphere is called a ________ circle of the sphere.
• When a plane passes through the center of the sphere, the sphere is cut into two equal parts, each of which is called a __________.
• The distance around a great circle of a sphere is called the ________ of the sphere.
• The shaded circle in this sphere is a/an ________ circle of the sphere.
• Given that point C is the center of this sphere, the shaded circle is a ________ circle of the sphere.
• Given that this figure is part of a sphere with its center at point C, it is a ________.
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