Vocab 1
Vocab 2
Vocab 3
Vocab 4
Vocab 5
100
A location with no size or shape?
Point
100
A line that extends indefinitely in one direction?
Ray
100
Points that lie on the same line?
Collinear
100
A flat surface made up of points and extends indefinitely in all directions?
Plane
100
Points that lie on the same plane?
Coplanar
150
Points that don't lie on the same plane?
Non-coplanar
Points, P, Q, R, O are non-coplanar.
150
Made up of points with no thickness or width?
Line
150
A measurable part of a line consisting of two endpoints?
Line Segment
150
Points that don't lie on the same line?
Non-collinear
150
Formula used to find the midpoint between two end points?
Midpoint Formula
200
An angle with a degree measure less than 90-degrees?
Acute Angle
200
An angle with a degree measure of 180?
Straight Angle
200
Two angles with the same measure?
Congruent Angles
200
An angle with a degree measure greater than 90-degrees?
Obtuse Angle
200
Two angles that share a common side and vertex (next to each other)?
Adjacent Angles
250
The formula used to find the distance between two points on a coordinate plane?
Distance Formula
250
Two segments that have the same length?
Congruent Segments
250
A segment, line, or plane that intersects a segment at its midpoint?
Segment Bisector
250
If A, B, and C are collinear points and B is between A and C, then AB + BC = AC?
Segment Addition Postulate
250
Two lines that intersect at a 90-degree angle (right angle)?
Perpendicular
300
A line, segment, or ray perpendicular to a segment at its midpoint?
Perpendicular Bisector
300
The intersection of two rays at an endpoint?
Angle
300
Two lines that never intersect?
Parallel Lines
300
An angle with a degree measure of 90?
Right Angle
300
The common endpoint of an angle (where the two rays/sides intersect)?
Vertex
400
If angle ABD and angle DBC are adjacent, then ABD + DBC = ABC?
Angle Addition Postulate
400
Two angles directly across from each other on intersecting lines?
Vertical Angles
400
Two angles with measures that sum to 90-degrees?
Complementary Angles
400
Two angles with measures that sum to 180-degrees?
Supplementary Angles
400
Adjacent angles that are supplementary; combined, they form a straight line?
Linear Pair
