Solid Figures Vocabulary. SOLID FIGURES 3 – Dimensional (3 – D) shapes 3 – Dimensional (3 –...
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Transcript of Solid Figures Vocabulary. SOLID FIGURES 3 – Dimensional (3 – D) shapes 3 – Dimensional (3 –...
Solid Figures
Vocabulary
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
POLYGONA 2 – D shape with
three or more sides (a circle is NOT a polygon)
POLYHEDRON
A 3 – D shape in which all faces and bases are
polygons
FACEOne of the sides of
a polyhedron (must be a
polygon in order to be a face)
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
EDGEThe intersection of
two faces in a solid figure
VERTEXThe point where
three or more edges meet.
VERTICES is the plural of “vertex”
PRISMA polyhedron with 2
parallel and congruent bases, and
the other faces are rectangles
Prisms are named by the shapes of their
two bases
Examples of Prisms…
CUBEA special prism with all 6 faces
as congruent squares
CYLINDERA 3-D shape with two
parallel, congruent circular bases
NOT a polyhedron because the bases are not polygons
Examples of Cylinders…
PYRAMIDA polyhedron with
1 base and triangular facesPyramids are named after the
shape of the base
Examples of Pyramids…
CONEA 3-D figure with 1
circular baseNOT a polyhedron because the base is
not a polygon
Examples of Cones…
NETA pattern that can
be folded to create the
outside of a solid figure
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
VOLUMEThe number of cubic units needed to fill a
spaceThe amount of space
inside a solid figure