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92 Cards in this Set
- Front
- Back
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2-D |
2 Dimensional - Having or appearing to have length and breadth but no depth |
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Depth |
The distance from the top or surface of something to its bottom |
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3-D |
3 Dimensional - Having or appearing to have length, breadth, and depth |
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Space |
A set of all points |
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Solid Figures / Solid |
A three dimensional figure that consists of all its surface points and all the points the surface encloses |
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Reflection Symmetry / Plane Symmetry |
A three dimensional figure in which you can divide along a plane into two parts that are mirror images of each other |
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Plane of Symmetry |
The plane within reflection symmetry |
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Intersection |
The set of points common to all figures |
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Cross Section |
When a solid and a plane intersect |
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Rotational Symmetry |
A three dimensional figure that can be turned around a line so it coincides with it's original position two or more times during a complete turn |
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Axis of Symmetry |
The line in rotational symmetry |
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Net |
A two dimensional figure that, when folded, forms the surface of a solid |
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Angle |
Figure formed by two rays with a common endpoint |
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End Point |
A point at the end of a ray or line segment |
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Line Segment |
Part of a line with 2 endpoints |
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Ray |
Part of a line that begins at one point and extends without end in one direction |
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Side |
Ray(s) of the angle |
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Vertex |
End point of an angle |
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Degree |
Common unit for measuring angels [Pre-Calc: Radians] |
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Similar Figures |
Equal Angles, sides are proportional |
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Scale Drawing |
2D drawing that is similar to what it corresponds |
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Scale |
Size of drawing to size of object |
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Scale Model |
3D figure whose surfaces are similar to the corresponding surfaces of the actual object |
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Collinear
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On the same line (points)
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Collinear
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On the same line (points)
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Coplanar
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On the same plane (points, lines, rays, line segments)
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Center of symmetry
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The point in which a figure can turn around for rotational symmetry
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Center of symmetry
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The point in which a figure can turn around for rotational symmetry
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Order of rotational symmetry
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The number of times the figure coincides with it's original position during the complete turn
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Line of symmetry
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A line that divides a figure into two parts that are mirror images of each other
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Geometric model |
A geometric figure that represents a real life object |
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Number Line |
A line on which numbers are marked with intervals |
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Coordinate |
Each of a group of numbers used to indicate the position of a point or line |
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Origin |
The point or place at which something begins |
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Length |
The measurement or extent of something from end to end |
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Coordinate Plane |
The plane determined by a horizontal number line, called the x-axis, and a vertical number line, called the y-axis, intersecting at a point called the origin. Each point in the coordinate plane can be specified by an ordered pair of numbers |
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Perpendicular |
At an angle of 90 Degrees to a given line, plane, or surface |
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X-Axis |
The principle or horizontal axis of a system of coordinates |
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Y-Axis |
The secondary or vertical axis of a system of coordinates |
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Axes |
Plural form of Axis |
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Quadrant |
Each of four parts of a plane, sphere, space, or body divided by planes or lines at right angle |
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Ordered Pair |
A pair of elements A,B, having the property that (A,B) = (U, V) if and only if A = U, B=V |
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X-Coordinate |
X Coordinate. The horizontal value in a pair of coordinates |
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Y- Coordinate |
The Y coordinate is the second number in an ordered pair |
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Z-Axis |
The Axis in three-dimensional Cartesian coordinates which is usually oriented vertically. |
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Ordered Triple |
Three coordinates that are required to label a point in space |
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Octants |
Each of eight parts in which a space or solid body is divided by three planes |
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Angle addition postulate
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Angle addition postulate
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Adjacent angles
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Angle addition postulate
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Adjacent angles
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Linear pair postulate
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Angle addition postulate
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Adjacent angles
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Linear pair postulate
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Congruent angles
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Postulate 9
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Let O be a point on AB such that O is between A and B. Consider OA, OB, and all the Rays that can be drawn from O on one side of AB. These Rays can be paired with the real numbers from 0-180 so that
1: OA is paired with 0 and OB is paired with 180 2: if OP is paired with X and OQ is paired with Y, then the number paired with angle POQ is |x-y|. This number is called the measure, or the degree measure, of angle POQ |
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Opposite rays
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Complementary angles
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Supplementary angles
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Angle addition postulate
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Adjacent angles
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Linear pair postulate
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Congruent angles
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Angle bisector
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