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# Geo_6.5

### Vocabulary for Geometry_6.5

TermDefinition
Cavalieri’s Principle If two solids have the same height h and the same cross-sectional area B at every level, then they have the same volume.
cone A solid with a circular base, a vertex not contained in the same plane as the base, and a lateral surface composed of all points in the segments connecting vertex to the edge of the base.
cylinder A figure with bases that area formed by congruent circles in parallel planes.
great circle A circle formed when a plane intersects a sphere with its center at the center of the sphere.
hemisphere One of the two congruent parts into which a great circle separates a sphere.
pole The endpoints of the diameter of a great circle.
pyramid A solid with all the faces, except one face, intersect at a point called the vertex, the face that does not contain the vertex is called the base and is a polygon region, and the faces meeting at the vertex are called lateral faces and are triangular regions.
sphere In space, the set of all points that are a given distance from a given point, called the center.
volume A measure of the amount of space enclosed by a three-dimensional figure.
Created by: mtoepper