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29 Cards in this Set
- Front
- Back
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Geometric model
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A geometric figure that represents a real life object reflection
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Reflection symmetry
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The mirror image of the other half
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Line of symmetry
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The vertical line at the center of an object
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Rotational symmetry
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A plane figure able to turn around a point so it coincides with it's original position 2 or more times during a complete turn
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Point
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A location, no size
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Line
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A set of points that extends in towards the opposite direction
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Plane
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Set of points that extends with out end in all directions on a flat surface
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Figure
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Any set of points
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Plane figure
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Set of points that extends without end in all directions on flat surface
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Reflection/ line symmetry
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Figure that can be divided into 2 parts that are mirror image
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Center of symmetry
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If a plane figure can be turned around a point so it coincides with it's original position , the point is the center of symmetry
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Order of rotation symmetry
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The number of times a plane figure coincides with it's original position during a complete turn around the center of symmetry
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N-fold rotational symmetry
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The number of times the object can turn while looking the same 360 degrees
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Space
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The set of all points
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Solid figures or a solid
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3D figures that consists of all it's surface points & all the points the surface encloses
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Intersection
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On two or more figures is the set of all points common to the figure
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Cross section
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Where a solid and plane intersect
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Net
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For solid is a 2D figure that when folded forms the surface of the solid
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Angle
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A figure formed by 2 rays with a common endpoint
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Vertex
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The endpoint of an angle
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Endpoint
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A point at the end of a ray or line segment
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Degree
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Common unit for measuring angles (radius)
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Line segment - segment
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Part of a line with 2 endpoints
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Ray
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Part of a line that begins at one endpoint and extends without end
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End
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Ray(s) of the angle
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Similar figures
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Equal sides are proportional to Eachother
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Scale
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Size of drawing: size of an object
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Scale drawing
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2d drawings that is similar to what it represents
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Scale model
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3d figure whose surface is similar to the corresponding surface of the actual object
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