Distance
An exact location in the space, and has no length, width, or thickness; has 0-dimensions.
Point
Two lines in the same plane that are at equal distance from each other and never intersect.
Parallel Lines
The figure formed by two rays, called the sides, sharing a common endpoint, called the vertex.
Angle
What is the distance between (4,1) and (8,4)?
5
A straight one-dimensional figure that does not have a thickness, and it extends endlessly in both directions.
Line
The points that lie on the same straight line or in a single line.
Collinear Points
An angle which is measuring greater than 0 and less than 90 degrees.
Acute Angle
Given the points A and B where A is at coordinates ( 2, -5 ) and B is at coordinates ( -3, -7 ) on the line segment AB, find the length of AB.
√29 or 5.39
A part of a straight line that is bounded by two distinct end points.
Line Segment
Two figures or objects are _________ if they have the same shape and size.
Congruent
An angle that is exactly equal to 90 degrees in measure.
Right Angle
The teacher stands at (0,0) and a student is sitting at (3,4). What is the distance between the teacher and students?
5 units
A part of a line that begins at a particular point called the endpoint and extends endlessly in one direction.
Ray
Two lines that meet or intersect each other at right angles (90°).
Perpendicular Lines
An angle which is greater than 90° and less than 180°
Obtuse Angle
To get from his home (0,0) to his girlfriend's home (x,y), Jimmy must drive 2 miles north, then 4 miles east, what is the straight-line distance between Jimmy's home and his girlfriend's home?
√20
FIND the unknown endpoint if you are given the coordinates of the one endpoint, (2,6) and of the midpoint, (3, 12).
The coordinates of the unknown endpoint:
(4, 18)
A flat surface of two dimensions.
Plane
A pair of lines that do not intersect and are not parallel to each other.
Skew Lines
An angle that measures exactly 180° and looks like a straight line.
Straight Angle