# Geometry Chapter 10 Vocab Only

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 Author: Minhs2 ID: 209545 Filename: Geometry Chapter 10 Vocab Only Updated: 2013-03-26 00:15:10 Tags: Geometry Folders: Description: Chapter 10 Show Answers:

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1. altitude of a prism
A segment with its endpoints on the planes of the bases that is perpendicular to the planes of the bases.
2. altitude of a cone
A segment from the vertex to the plane of the base that is perpendicular to the plane of the base.
3. altitude of a pyramid
A segment from the vertex to the plane of the base that is perpendicular to the plane of the base.
4. axis of a cone
The segment with endpoints at the vertex and the center of the base.
5. axis of a cylinder
The segment with endpoints at the centers of the two bases.
6. center of a sphere
The point inside a sphere that is the same distance from every point on the sphere.
7. cone
A three-dimensional figure with a circular base and a curved lateral surface that connects the base to a point called the vertex.
8. cross section
The intersection of a three dimensional figure and a plane.
9. cube
A prism with six square faces.
10. cylinder
A three-dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the bases.
11. edge of a three-dimensional figure
A segment that is the intersection of two faces of the figure.
12. face of a polyhedron
A flat surface of the polyhedron.
13. great circle
A circle on a sphere that divides the sphere into two hemispheres.
14. hemisphere
Half of a sphere.
15. horizon
The horizontal line in a perspective drawing that contains the vanishing point(s).
16. isometric drawing
A way of drawing three-dimensional figures using isometric dot paper, which has equally spaced dots in a repeating triangular pattern.
17. lateral edge
An edge of a prism or pyramid that is not an edge of a base.
18. lateral face
A face of a prism or a pyramid that is not a base.
19. lateral surface
The curved surface of a cylinder or cone.
20. net
A diagram of the faces of a three-dimensional figure arranged in such a way that the diagram can be folded to form the three-dimensional figure.
21. oblique cone
A cone whose axis is not perpendicular to the base.
22. oblique cylinder
A cylinder whose axis is not perpendicular to the bases.
23. oblique prism
A prism that has at least one nonrectangular lateral face.
24. orthographic drawing
A drawing that shows a three-dimensional object in which the line of sight for each view is perpendicular to the plane of the picture.
25. perspective drawing
A drawing in which nonvertical parallel lines meet at a point called a vanishing point. Perspective drawings can have one or two vanishing points.
26. polyhedron
A closed three-dimensional figure formed by four or more polygons that intersect only at their edges.
27. prism
A polyhedron formed by two parallel congruent polygonal bases connected by lateral faces that are parallelograms.
28. pyramid
A polyhedron formed by a polygonal base and triangular lateral faces that meet at a common vertex.
A segment whose endpoints are the center of a sphere and any point on the sphere; the distance from the center of a sphere to any point on the sphere.
30. regular pyramid
A pyramid whose base is a regular polygon and whose lateral faces are congruent isosceles triangles.
31. right cone
A cone whose axis is perpendicular to the base.
32. right cylinder
A cylinder whose axis is perpendicular to its bases.
33. right prism
A prism whose lateral faces are all rectangles.
34. slant height of a regular pyramid
The distance from the vertex of a regular pyramid to the midpoint of an edge of the base.
35. slant height of a right cone
The distance from the vertex of a right cone to a point on the edge of the base.
36. space
The set of all points in three dimensions.
37. sphere
The set of points in space that are a fixed distance from a given point called the center of the sphere.
38. surface area
The total area of all faces and curved surfaces of a three-dimensional figure.
39. vanishing point
In a perspective drawing, a point on the horizon where parallel lines appear to meet.
40. vertex of a three-dimensional figure
The point that is the intersection of three or more faces of the figure.
41. vertex of a cone
The point opposite the base of the cone.
42. vertex of a pyramid
The point opposite the base of the pyramid.
43. volume
The number of nonoverlapping unit cubes of a given size that will exactly fill the interior of a three-dimensional figure.

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