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19 Cards in this Set
- Front
- Back
Inductive reasoning
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method used for drawing conclusions from a limited set of observations
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Deductive reasoning
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uses logic to draw conclusions from statements already accepted as true
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collinear
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points are collinear if there is a line that contains all of them
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noncollinear
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points are noncollinear if no single line contains them all
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coplanar
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points are coplanar if there is a plane that contains them all
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concurrent
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lines are concurrent if they contain they same point
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angle
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pair of rays with the same endpoint
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ray
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part of a line that extends endlessly in one direction
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line segment
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part of a line bounded by two endpoints; one-dimensional
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polygon
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two-dimensional; lies in a plane; bounded by line segments
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polyhedron
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three-dimensional; exists in space; bounded by polygons
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perimeter
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perimeter of a polygon is the sum of the lengths of its sides
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area
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the surface included within a set of lines; specifically, the number of unit squares equal in measure to the surface
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area of rectangle
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A=lw
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circle
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set of all points in a plane that are a fixed distance from a given point in the plane
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radius
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fixed distance from center of circle and any point on it
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bisect
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to divide it into two equal parts
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protractor
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measures angles in degrees
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constructions
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geometric drawings made with compass and straightedge
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