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# Geometry Vocabulary

### Chapter 6

TermMeaning
altitude of a prism segment that joins the planes of the bases.
altitude of a circle perpendicular segment that joins the planes of the bases.
altitude of a pyramid the perpendicular segment from the vertex to the center of the base.
altitude a perpendicular segment from the bertex to the center of the base
bases a face
center the middle of the shape
circumference of a sphere the circumfrence of a great circle.
composite space figure combines two or more of these figures
cone like a pyramid, but its base is a circle
cube a prism with square faces
cylinder has two congruent parallel bases
edge a segment that is the intersection of two faces
faces polygons of a polyhedron
geometric probability uses geometric figures to represent occurrences of events.
great circle if the center of the circle is also the center of the sphere.
height is the length of an altitude
hemisphere is the two parts made by the great circle
lateral area is the sum of the areas of the lateral faces
lateral face the faces that are not the base. The area of the resulting rectanngle of a circle
net a two dimensional pattern that you fold to form a three dimensional shape
oblique cylinder a cylinder that is not straight and the right angle is outside of the shape
oblique prism the height or altitude outside of the prism
polyhedron a three dimensional figure whose surfaces are polygons
prism a polyhedron with two congruent parallel bases
pyramid a polyhedron in which one face (the base) can be any polygon and the other faces are triangles that meet at a common vertex
regular pyramid a pyramid whose base is a regular polygon.
right cone the altitude is perpendicular segment from the vertex to the center of the base.
right cylinder the segment joining the centers of the bases is an altitude.
right prism the lateral faces are rectangles & a lateral edge is an altitude
slant height is the length of the altitude of a lateral face of the pyramid
sphere the set of all points in space equidistant from a given point
surface area is the sum of areas of the lateral faces and the two bases
vertex a point where edges intersect
volume is the space that a figure occupies.
Created by: gumby2008