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| Through any two point there is exactly one line. A line has no thickness, & goes on forever in both directions |
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| a flat surface extending infinitely in all directions.three |
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| a point that is located in the exact middle of a segment 7 creates two congruent segments. |
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| Points that all lie on one plane |
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| the set of all points in a plane that are the same distance from a given point |
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| distance from the center to any point of the circle |
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| a chord that passes through the center |
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| a segment joining two points on a circle |
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| a line that passes through a circle |
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| the distance around a circle |
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| formed by two rays with a common endpoint |
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| the common endpoint of an angle |
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| two lines that intersect to form 4 congruent angles. all angles are 90 degrees |
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| the nonadjacent angles formed by two intersecting lines. they are congruent. |
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| an ray that goes through an angle and creates two congruent angles |
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| angle with a measure between 0-90 |
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| an angle with measure between 90-180 |
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| when the measure of two angles sum is 180 |
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| when the sum of the measures of two angles is 90 |
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| are the nonadjacent angles formed when two lines intersect. they are congruent |
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| two planes that are in the same plane & do not intersect |
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| a line that intersects two or more other conplanar lines |
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Definition
| formed by 3 noncollinear points. the sum of the angle measures is 180 |
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| triangle with 3 acute angles |
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Definition
| a triangle with exactly 1 right angle |
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Definition
| a triangle with exactly 1 obtuse triangle |
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Definition
| a triangle with no two sides congruent |
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Definition
| triangle with at least two congruent sides |
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| a triangle with all sides are congruent |
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a quadrilateral
both pairs of opposite sides are parallel
opposite sides are congruent
opposite angles are congruent |
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parallelogram
opp. sides parallel
all sides congruent
opp. angles congruent |
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Definition
opp. sides parallel
opp. sides congruent
4 right angles |
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Definition
opposite sides parallel
all sides congruent
4 right angles |
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Definition
| a closed figure made of segments joined at their endpoints. |
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| all sides and angles are congruent. |
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