solid figures vocabulary. solid figures 3 – dimensional (3 – d) shapes 3 – dimensional (3 –...
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Solid Figures
Vocabulary
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SOLID FIGURES3 – Dimensional (3 – D)
shapesThey are made up of 2 – D shapes (squares, rectangles, triangles, circles, and more)
Include: cylinders, cubes, prisms, pyramids, cones, and spheres
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POLYGONA 2 – D shape with
three or more sides (a circle is NOT a polygon)
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POLYHEDRON
A 3 – D shape in which all faces and bases are
polygons
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FACEOne of the sides of
a polyhedron (must be a
polygon in order to be a face)
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BASEThe part of the figure
that is on the top or bottom (the part it
sits on)The solids we study will have either 1 or 2
bases
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EDGEThe intersection of
two faces in a solid figure
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VERTEXThe point where
three or more edges meet.
VERTICES is the plural of “vertex”
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PRISMA polyhedron with 2
parallel and congruent bases, and
the other faces are rectangles
Prisms are named by the shapes of their
two bases
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Examples of Prisms…
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CUBEA special prism with all 6 faces
as congruent squares
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CYLINDERA 3-D shape with two
parallel, congruent circular bases
NOT a polyhedron because the bases are not polygons
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Examples of Cylinders…
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PYRAMIDA polyhedron with
1 base and triangular facesPyramids are named after the
shape of the base
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Examples of Pyramids…
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CONEA 3-D figure with 1
circular baseNOT a polyhedron because the base is
not a polygon
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Examples of Cones…
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NETA pattern that can
be folded to create the
outside of a solid figure
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SURFACE AREA
The sum of the areas of the 2 – D shapes which make up a
solid figureDraw the net & add up the areas of all of
the parts
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VOLUMEThe number of cubic units needed to fill a
spaceThe amount of space
inside a solid figure