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Attributes A quality that is characteristic of someone or something. Congruent – figures that have exactly the same size and same shape Lines • parallel lines • Lines in a plane that never intersect Example: perpendicular lines Two lines that intersect to form four right angles Example: Trapezoid – a quadrilateral with only one pair of parallel sides Parallelogram – any four sided polygon with two pairs of parallel lines Solid figure – A figure with 3 dimensions; not flat Three Dimensional – having length, width, height, and volume Horizontal – the direction from left to right Vertical – The direction from top to bottom Edge – A place where two or more sides meet on a geometric solid Edge Face – A flat side on a geometric solid Face Vertex – a corner; a place where three or more sides meet in a geometric solid Prism – A 3-dimensional figure that has two congruent and parallel faces that are polygons. The rest of the faces are parallelograms rectangular prism Hexagonal prism Rectangular Prism – A solid figure in which all six faces are rectangles Square Pyramid – a pyramid whose base is a square and whose other faces are triangles that share a common vertex Base – A special face of a solid figure Base The base of a cone is a circle. Side – any of the line segments that form a polygon Side Square – A plane figure with four sides that are the same length and four right angles Rectangle • A parallelogram with four right angles Triangle – A plane figure with three straight sides Pentagon – a five-sided polygon Hexagon – a six sided polygon 1 6 2 5 3 4 Octagon – An eightsided polygon STOP Cube – A solid figure with six congruent square faces Pyramid – a polyhedron whose base is a polygon whose other faces are triangles that share a common vertex Sphere – any round object whose curved surface is the same distance to the center as all of its points Cylinder – A solid figure with two circular bases that are parallel and congruent Cone – a solid figure with one curved surface, one circular base, and one vertex Vertex Circular Base