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11 terms

Geometry

basic geometry
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Polygon
a closed plane figure with straight sides
Examples: rectangles, squares, triangles, etc.
Regular polygon
a polygon in which the sides are all the same length (equilateral) and are symmetrically placed around a common center (equiangular)
Examples: equilateral triangle, squares
Polyhedron
a three-dimensional figure whose surfaces are polygons
Prism
a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
Right prism
a prism whose lateral faces are rectangles
Pyramid
a polyhedron with a polygon base and triangular sides that meet at a single point, or the apex
Cylinder
A solid bounded by two congruent and parallel circular bases, one directly above the other
Face
a flat surface on a three-dimensional shape
Edge
the line formed by 2 faces
Vertex
the point where two or more edges meet
A net of a solid
A figure which can be folded to form the surface of a solid