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23 terms

Geometry Honors Chapter 10

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polyhedron
a three-dimensional figure whose surfaces are polygons
face
Each polygon is a ____ of the polyhedron
edge
a segment that is formed by the intersection of two faces
vertex
a point where three or more edges intersect
net
a two-dimensional pattern that you can fold to form a three-dimensional figure
cube
a polyhedron with six faces, eaqch of which is a square
F + V = E + 2
Euler's Formula
prism
a polyhedron with exactly two congruent, parallel faces
bases
the two congruent, parallel faces, called _____
lateral faces
all of the other faces that are not bases
altitude
a perpendicular segment that joins the planes of the bases
height
the length of an altitude
right prism
In a ____ _____ the lateral faces are rectangles and a lateral edge is an altitude
lateral area
the sum of the areas of the lateral faces
surface area
the sum of the lateral area and the area of the two bases
cylinder
Has two congruent bases and the bases are circles
pyramid
a polyhedron in which one face can by any polygon and the other faces are triangles that meet at a common vertex
altitude
the perpendicular segment from the vertex to the plane of the base
regular pyramid
a pyramid whose base is a regular polygon and whose lateral faces are congruent isosceles triangles
slant height
the length of the altitude of a lateral face of the pyramid
lateral area
____ ____ of a pyramid is the sum of the areas of the congruent lateral faces.
volume
the space that a figure occupies
sphere
the set of all points in space equidistant from a given point called the center.