Unit 7 Solid Figures Vocabulary YEAH SOLID FIGURES

Unit 7 – Solid Figures Vocabulary YEAH!

SOLID FIGURES n 3 – Dimensional (3 – D) shapes n They are made up of 2 – D shapes (squares, rectangles, triangles, circles, and more) n Include: cylinders, cubes,

POLYGON A 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

FACE One of the sides of a polyhedron (must be a polygon in order to be a face)

BASE n. The part of the figure that is on the top or bottom (the part it sits on) n. The solids we study will have either 1 or 2 bases

EDGE The intersection of two faces in a solid figure

VERTEX n. The point where three or more edges meet. n. VERTICES is the plural of “vertex”

PRISM n. A polyhedron with 2 parallel and congruent bases, and the other faces are rectangles n. Prisms are named by the shapes of their two

Examples of Prisms…

CUBE A special prism with all 6 faces as congruent squares

CYLINDER n. A 3 -D shape with two parallel, congruent circular bases n. NOT a polyhedron because the bases are not polygons

Examples of Cylinders…

PYRAMID n. A polyhedron with 1 base and triangular faces n. Pyramids are named after the shape of the

Examples of Pyramids…

CONE n. A 3 -D figure with 1 circular base n. NOT a polyhedron because the base is not a polygon

Examples of Cones…

NET A pattern that can be folded to create the outside of a solid figure

SURFACE AREA n. The sum of the areas of the 2 – D shapes which make up a solid figure n. Draw the net & add up the areas of all of the parts

VOLUME n. The number of cubic units needed to fill a space n. The amount of space inside a solid figure