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U6 Vocab
math
Term | Definition |
---|---|
2-dimensional | a flat figure with two dimensions such as length and width |
3-dimensional | a solid figure with three dimensions such as length, width and height |
area | the number of square units needed to cover a given surface |
bases of a prism | two congruent parallel faces by which the prism is classified |
composing | combining two or more simple shapes to create a larger shape |
cubic units | units used to measure volume; units raised to the third power |
decomposing | to break apart a larger shape into other smaller shapes |
dimension | the length, width or height of a figure |
edge | the line segment along which two faces of a polyhedron intersect |
face | a flat surface of a polyhedron |
lateral faces | in a cylinder, the curved surface connecting the circular bases; in a cone, the curved surface that is not a base |
net | an arrangement of 2-dimensional figures that can be folded to form a 3-dimensional figure |
surface area | the sum of the areas of the faces, or surfaces, of a 3-dimensional figure |
vertices | the points where two sides intersect; the plural form of vertex |
volume | the number of cubic units needed to fill a given space |