Vocabulary 1
Vocabulary 2
100
A solid that is bounded by polygons, called faces, that enclose a single region of space.
What is a polyhedron
100
The polygons that make up a polyhedron
What are faces
200
A line segment formed by the intersection of two faces of a polyhedron
What is an edge
200
The intersection of a plane and a solid
What is a cross section
300
A polyhedron with two congruent faces, called bases, that lie in parallel planes. The other faces, called lateral faces, are parallelograms formed by connecting the corresponding vertices of the bases. The segments connecting the vertices are lateral edges. The altitude, or height, of this figure is the perpendicular distance between its bases.
What is a prism
300
The polygons in a polyhedron that always lie in parallel planes
What are the bases of a prism
400
A solid with congruent circular bases that lie in parallel planes. The altitude, or height, of this figure is the perpendicular distance between its bases. The radius of the base is also called the radius of the figure
What is a cylinder
400
A polyhedron in which the base is a polygon and the lateral faces are triangles with a common vertex. The intersection of two lateral faces is a lateral edge. The intersection of the base and a lateral face is a base edge. The altitude, or height, is the perpendicular distance between the base and the vertex.
What is a pyramid
500
A solid with a circular base and a vertex that is not in the same plane as the base. The lateral surface consists of all segments that connect the vertex with points on the edge of the base. The altitude, or height, is the perpendicular distance between the vertex and the plane that contains the base.
What is a cone
500
The locus of points in space that are a given distance from a point, called the center of the figure.
What is a sphere
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