Geometry unit 8 lesson 8
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If a plane intersects a sphere at a point other than a point of tangency, it forms a(n) _____.
circle
A _____ is a circle formed by the intersection of the surface of a sphere with a plane that passes through the center of the sphere.
great circle
A half sphere is called a -.
hemisphere
Mathematicians sometimes describe the inside space of a sphere as a _____.
ball
A sphere is different from other geometric solids in that it has no _____.
base
The _____ of a sphere is a segment that connects the center of the sphere with any point on the surface of the sphere.
radius
