# Geometry Honors Chapter 10

### 23 terms by rhand919

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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

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.

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