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33 Cards in this Set
- Front
- Back
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altitude |
a perpendicular segment joining the base of a figure to the opposite vertex or parallel surface |
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axis of a cone |
the segment with endpoints at the vertex and the center of the base |
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axis of a cylinder |
the segment with endpoints at the centers of the two bases |
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center of a sphere |
the point inside of a sphere that is the same distance from every point on the sphere |
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cone |
a three-dimensional figure with a circular base and a curved lateral surface that connects the base to a point called the vertex |
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cross section |
the intersection of a three-dimensional figure and a plane |
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cube |
a prism with six square faces |
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cylinder |
a three-dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the bases |
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edge |
a segment that is the intersection of two faces of the figure |
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face |
a flat surface of the polyhedron |
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great circle |
a circle on a sphere that divides the sphere into two hemispheres |
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hemisphere |
half of a sphere |
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horizon |
the horizontal line in a perspective drawing that contains the vanishing point(s) |
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isometric drawing |
a way of drawing three-dimensional figures using isometric dot paper, which has equally spaced dots in a repeating triangular pattern |
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net |
a diagram of the faces and surfaces of a three-dimensional figure that can be folded to form the three-dimensional figure |
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oblique cylinder |
a cylinder whose axis is not perpendicular to the bases |
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oblique prism |
a prism that has at least one nonrectangular lateral face |
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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 |
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perspective drawing |
a drawing in which nonvertical parallel lines meet at a point |
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polyhedron |
a closed three-dimensional figure formed by four or more polygons that intersect only at their edges |
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prism |
a polyhedron formed by two parallel congruent polygonal bases connected by lateral faces that are parallelograms |
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pyramid |
a polyhedron formed by a polygonal base and triangular lateral faces that meet at a common vertex |
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regular pyramid |
a pyramid whose base is a regular polygon and whose lateral faces are congruent isosceles triangles |
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right cone |
a cone whose axis is perpendicular to the base |
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right cylinder |
a cylinder whose axis is perpendicular to its bases |
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right prism |
a prism whose lateral faces are all rectangles |
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slant height of a regular pyramid |
the distance from the vertex of a regular pyramid to the midpoint of an edge of the base |
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slant height of a right cone |
the distance from the vertex of a right cone to a point on the edge of the base |
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sphere |
the set of points in space that are a fixed distance from a given point |
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surface area |
the total area of all faces and curved surfaces of a three-dimensional figure |
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vanishing point |
in a perspective drawing, a point on the horizon where parallel lines appear to meet |
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vertex |
the point that is the intersection of three or more faces of the figure |
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volume |
the number of nonoverlapping unit cubes of a given size that will exactly fill the interior of a three-dimensional figure |
