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Geometry/Volume Vocabulary
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Terms in this set (17)
Congruent
the same shape and size; two shapes are congruent if they can be turned or flipped so they can fit exactly into each other
Similar
the same shape, but different size
Symmetry
one half of a shape is exactly the same (mirror image) of the other
Parallel
two lines on a plane that never meet
Perpendicular
lines that are at right angles to each other
Plane Figure
2-dimensional shapes
Solid Figure
3-dimensional shapes
Prism
a solid figure with two parallel, congruent bases joined by rectangular faces. A prism is named by the shape of its bases
Bases
the opposite, congruent faces of a prism
Faces
the flat surfaces of a solid figure
Edges
the line segments that form when two faces meet
Vertices
the points where three or more edges meet
Rectangular Prism
a 3-dimensional shape with six faces
Volume
the amount of space taken up by an object
Cube
a 3-D shape with six rectangular faces
3D shapes
have three dimensions: length (L), width (W), and height (H)
Unit Cubes
have edges that are 1 unit long
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