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15 Cards in this Set

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  • Back
What is a geometric model?
a geometric figure that represents a real life object.
What is reflection symmetry?
if a figure can be divided along a line into 2 parts that are mirror images of each other.
What is line symmetry?
a line that divids a plane figure into 2 parts that are mirror images of each other.
What is a point?
a location.
What is a line?
a set of points that extend without end in two oppisite directions.
What is a plane?
a set of points that extends without end in all directions along a flat surface.
What is a plane figure?
a set of points that lie in the same plane.
What is rotation symmetry?
if a figure can be turned around a point so it coincides with its original position two or more times a complete turn.
What is center of symmetry?
if a plane figure can be turned around a point so it coincides with its original position two or more times during a complete turn, the point is its center of symmetry.
What is order of rotation symmetry?
the number of times a plane figure coincides with its original position during a complete turn around its center of symmetry.
What is line of symmetry?
a line that divides a plane figure into two parts that are mirror images of each other.
What is a solid figure?
a three demension figure that consist of all its surface points abd all the surface encloses.(also known as a solid)
What is plane of symmetry?
a plane that divides a three dimensional figure into two parts that are mirror image of each other.
What is intersection?
the set of points common to all figures.
What is cross section?
the intersection of a three dimensional figure and a plane.