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50 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Point |
Has no size & names an exact location in a space |
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Line |
Has length only |
( No width or thickness) |
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Plane |
A flat surface w/ length and width but no thickness |
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Collinear |
Describes points on the same line |
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Coplanar |
Describes points in the same plane. |
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Segment |
Part of a line consisting of 2 points & all points between. |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Endpoint |
Marks the end of a line segment. |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Endpoint |
Marks the end of a line segment. |
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Opposite rays |
Have a common endpoint and form a line. |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Endpoint |
Marks the end of a line segment. |
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Opposite rays |
Have a common endpoint and form a line. |
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Postulate (axiom) |
A true statement that doesn't require to be proven. |
Tick marks on triangles to show congruence |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Endpoint |
Marks the end of a line segment. |
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Opposite rays |
Have a common endpoint and form a line. |
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Postulate (axiom) |
A true statement that doesn't require to be proven. |
Tick marks on triangles to show congruence |
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Congruent |
Exactly the same in size & shape. |
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Ray |
Part of a line w/ one end point. Exends forever in one direction. |
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Endpoint |
Marks the end of a line segment. |
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Opposite rays |
Have a common endpoint and form a line. |
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Postulate (axiom) |
A true statement that doesn't require to be proven. |
Tick marks on triangles to show congruence |
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Congruent |
Exactly the same in size & shape. |
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Midpoint |
Point that bisects (cuts into equal parts) a figure (segment) |
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Segment Bisector |
A line, segment, or ray that intersects a segment at its midpoint. |
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Regular polygon |
All sides and length equal in measure |
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Regular polygon |
All sides and length equal in measure |
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Convex |
Any diagonal will not contain points on the exterior of the polygon. |
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Regular polygon |
All sides and length equal in measure |
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Convex |
Any diagonal will not contain points on the exterior of the polygon. |
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Concave |
If a diagonal can contain points not in the interior of the polygon, the polygon is concave. |
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Regular polygon |
All sides and length equal in measure |
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Convex |
Any diagonal will not contain points on the exterior of the polygon. |
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Concave |
If a diagonal can contain points not in the interior of the polygon, the polygon is concave. |
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Polygon |
A closed plane figure made up of line segments that only intersect at shared end points. |
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Perpendicular |
Intersect at a 90° angle. |
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Perpendicular |
Intersect at a 90° angle. |
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Linear Pair |
Two angles that are adjacent and supplementary. |
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Perpendicular |
Intersect at a 90° angle. |
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Linear Pair |
Two angles that are adjacent and supplementary. |
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Adjacent Angles |
Two angles that are next to each other and share a common side. |
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Perpendicular |
Intersect at a 90° angle. |
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Linear Pair |
Two angles that are adjacent and supplementary. |
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Adjacent Angles |
Two angles that are next to each other and share a common side. |
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Angle Bisector |
Cuts the angle equally into two parts. |
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Vertex |
Two end points meet. |
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Angle |
1. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet |
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