Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
Collinear
|
Points that lie on the same line.
|
|
Coplanar
|
Points that lie on the same plane
|
|
Endpoint
|
A point at the end of a segment or the starting point of a ray.
|
|
Line
|
A straight path that has no thickness and extends forever.
|
|
Opposite Rays
|
Two rays that have a common end point a form a line.
|
|
Plane
|
A flat surface that has no thickness and extends forever.
|
|
Point
|
It names a location and has not size.
|
|
Postulate (axiom)
|
A statement that is accepted as true without proof.
|
|
Ray
|
A part of a line that starts at an endpoint and extends forever in one direction.
|
|
Segment
|
A part of a line consisting of two end points.
|
|
Undefined Terms
|
A basic figure that is not defined in terms of other figures.
The undefined terms in geometry are: 1. Point 2. Line 3. Plane |
|
Congruent Segments
|
Two segments that have the same length.
|
|
Construction
|
A method of creating a figure that is considered mathematically precise.
|
|
Coordinate
|
A number used to identify the location of a point.
|
|
Distance
|
The absolute value of the difference of the coordinates of the points.
|
|
Length
|
The distance between to end points of a segment.
|
|
Midpoint
|
The point that divide a segment into two congruent segments.
|
|
Segment Bisector
|
A ray, line, or segment that divides a segment into two congruent segments.
|
|
Acute Angle
|
An angle that measures greater than 0 degrees but less than 90 degrees.
|
|
Angle
|
A figure formed by two rays with a common endpoint.
|
|
Angle Bisector
|
A ray that divides an angle into two congruent angles.
|
|
Bisect
|
To divide into two congruent parts.
|
|
Congruent Angles
|
Angles that have the same measure.
|
|
Degree
|
A unit of angle measure; one degree is 1/360 of a circle.
|
|
Exterior of an Angle
|
The set of all points outside an angle.
|
|
Interior of an Angle
|
The set of all points between the sides of an angle.
|
|
Obtuse Angle
|
An angle that measures greater than 90 degrees and less than 180 degrees.
|
|
Right Angle
|
An angle that measures 90 degrees.
|
|
Straight Angle
|
An angle that measures 180 degrees.
|
|
Vertex of an angle
|
The common endpoint of the sides of the angle.
|
|
Adjacent Angles
|
Two angles in the same plane with a common vertex and common side but no common interior parts.
|
|
Complementary Angles
|
Two angles whose measures have a sum of 90 degrees.
|
|
Linear Pair
|
A pair of adjacent angles whose non common sides are opposite rays.
|
|
Supplementary Angles
|
Two angles whose measures have a sum of 180 degrees.
|
|
Vertical Angles
|
The nonadjacent angles formed by two intersecting lines.
|