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Geometry week 2
3D
15
Mathematics
9th Grade
09/01/2011

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Cards

Term
Net
Definition
A 2-dimensional picture of a 3-dimensional figure
Term
Pyramid
Definition
1 polygon base and triangular faces that meet at a common vertex
Term
Vertex
Definition
a point where 3 or more faces meet
Term
Edge
Definition
the segment formed by the intersection of two faces
Term
Face
Definition
each flat surface has a 3-dimensional figure
Term
cone
Definition
1 circular base and a curved surface that meets at a vertex
Term
Prism
Definition
2 parallel polygon bases connected by parallelogram faces
Term
Cylinder
Definition
2 parallel circular bases connected by a curved surface
Term
cube
Definition
a prism with square faces
Term
orthographic
Definition
drawing shows different views of an object: top, bottom, front, back, left side and right side
Term
isometric
Definition
drawing is a way to show three sides of a figure from a corner view. You can use dot paper to help draw the figure
Term
Sphere
Definition
A round solid figure, or its surface, with every point on its surface equidistant from its center
Term
Polyhedron
Definition
A solid figure with many plane faces, typically more than six.
Term
Platonic Solid
Definition
One of five regular solids (a tetrahedron, cube, octahedron, dodecahedron, or icosahedron)
Term
Congruence
Definition
the same size and shape
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