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| The intersection of to lines is a ... |
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| A figure formed by two rays with a common endpoint.[image] |
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| Points lying on the same line.[image] |
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| Points lying on the same plane.[image] |
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| Two or more points in common.[image] |
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| An undefined term in geometry, understood to be perfectly straight, has no thickness, contain and infinite amount of points, and extend infinitely in both directions.[image]s. |
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An undefined term in geometry, which is understood to be a flat surface that extends infinitely in all directions.
[image] |
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| An undefined term in geometry, that can be thought of as a dot that represents a location in space that has no size.[image] |
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| A statement that is accepted as true without proof. |
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A part of a line that starts at a point and extends infinitely in one direction.
[image] |
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| A part of a line that begins at one point and ends that another.[image] |
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| The point in common of the two rays that form an angle.[image] |
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Term
| The intersection of two planes is a ... |
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Term
| Through any two points there is one and only ... |
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Definition
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Term
| Through any three noncollinear points there is one and only one... |
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Term
| If there are two points in a plane, then the line containing them is in the ... |
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The relationship between figures having the same size and shape.
[image] |
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Definition
The distance from one endpoint to another.
abs val ( a - b ) or
abs val ( b - a ) |
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Term
| Segment Congruence Postulate |
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Definition
If two segments have the same length as measured by a fair ruler, then the segments are congruent. Also, if two segments are congruent, then they have the same length as measured by a fair ruler. |
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Term
| Segment Addition Postulate (line including points PQR) |
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Definition
If point Q is between points P and R on a line, then PQ + QR = PR
[image]. |
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Definition
An angle whose measure is less than 90 degrees.
[image] |
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Term
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Definition
Two angles whose measure has a sum of 90 degrees.
[image] |
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These angles are created when two lines intersect. The measure of the line is 180 degrees, so the angles must also sum 180 degrees.
[image] |
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Definition
An angle whose measure is greater than 90 degrees.
[image] |
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Term
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Definition
An angle whose measure is 90 degrees.
[image] |
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Two angles whose sum has a measure of 180 degrees.
[image] |
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Definition
Angle Addition Postulate states that if a point S lies in the interior of ∠PQR, then ∠PQS + ∠SQR = ∠PQR.
[image] |
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Term
| Angle Congruence Postulate |
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Definition
If angles have the same measure, then they are congruent. If two angles are congruent, then they have the same measure.
[image] |
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Definition
If two angles form a linear pair, then they are supplementary.
[image] |
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A ray that divides an angle into two congruent angles.
[image] |
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Definition
The point at which an image rotates around.
[image] |
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The center of a circumscribed circle; the point which the three perpendicular bisectors of the sides of a triangle intersect.
[image] |
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Definition
A circule that is drawn around the outside a triagle and contains all three vertices.
[image] |
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Definition
Literally, "running together"; of three or more lines, intersecting at a single point.
[image] |
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| A statement that is believed to be true. |
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A point at an end of a segment or the starting point of a ray.
[image] |
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Definition
The center of an inscribed circle; the point where the three angle bisectors of a triangle intersect.
[image] |
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Definition
Is a circle inside a triangle that touches each side of the triangle at one point.
[image] |
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The point that divides a segment into two congruent segments.
[image] |
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Definition
Coplanar lines that never intersect.
[image] |
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Definition
A line that is perpendicular to a segment at its midpoint.
[image] |
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Lines that intersect to form right angles.
[image] |
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| A shape that undergoes a motion or a transformation. |
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Definition
A transformation that creates a mirror image.
[image] |
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Definition
A transformation where the image is rotated around a single point.
[image] |
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A transformation in which every point on the image moves/slides the same direction.
[image] |
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Definition
| A transformation that does not change the shape or size of a figure. |
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