Chap. 11 Vocabulary Flashcards
A _____ ______ is the intersection of a solid and a plane.
cross section
The two parallel faces in a polyhedron are called _____.
bases
Each polygon is a _____ of the polyhedron.
face
The faces that are not parallel in a polyhedron are called _____ _____.
lateral faces
A _____ is a space figure, or three-dimensional figure, whose surfaces are polygons.
polyhedron
A _____ is a polyhedron with two congruent, parallel faces, called bases.
prism
An _____ is a segment that is formed by the intersection of two faces.
edge
The point at which all the lateral faces of a pyramid meet is called a _____.
vertex
A _____ is a polyhedron in which one face can be any polygon and the other faces are triangles that meet at a common vertex.
pyramid
A _____ is a solid that has two congruent parallel bases that are circles.
cylinder
The _____ of a prism is the length of an altitude.
height
In a _____ _____, the lateral faces are rectangles and a lateral edge is an altitude. (prism)
right prism
In a _____ _____, some or all of the lateral faces are nonrectangular. (prism)
oblique prism
The _____ _____ of a prism is the sum of the areas of the lateral faces.
lateral area
The _____ _____ of a prism is the sum of the lateral area and the area of the two bases.
surface area
An _____ of a prism is a perpendicular segment that joins the planes of the bases.
altitude
A ______ _____ _____ is a three-dimensional figure that is the combination of two or more simpler figures.
composite space figure
The _____ _____ is the length of the altitude of a lateral face of the pyramid.
slant height
_____ is the space that a figure occupies.
volume
A _____ is the set of all points in space equidistant from a given point called the center.
sphere
A _____ is a solid that has one base and a vertex that is not in the same plane as the base.
cone
A _____ is a point where three or more edges intersect.
vertex
A _____ _____ is a pyramid whose base is a regular polygon and lateral faces congruent isosceles triangles.
regular pyramid
A _____ is a segment that has one endpoint at the center and the other endpoint on the sphere.
radius
The _____ of a sphere is a point that is equidistant from the sides.
center
A great circle divides a sphere into two _____.
hemispheres
A _____ is a segment passing through the center with endpoints on the sphere.
diameter
_____ _____ have the same shape, and all their corresponding dimensions are proportional.
similar solids
If the center of the circle is also the center of the sphere, it is called a _____ _____.
great circle
The circumference of a great circle is the _____ of the sphere.
circumference
