Vocab 1
Vocab 2
Vocab 3
Vocab 4
Vocab 5
100
A location that has no size or shape?
Point
100
Consists of infinitely many points on a straight path that extends in two opposite directions with no end and no thickness?
Line
100
Points that lie on the same line?
Collinear
100
An angle with a degree measure of 90?
Right Angle
100
Points that lie on the same plane?
Coplanar
150
At least four points that DO NOT lie on the same plane?
Non-coplanar
Points, P, Q, R, O are non-coplanar.
150
Two segments that have the same length?
Congruent Segments
150
The part of a line that consists of two endpoints and all points between them?
Line Segment
150
At least three points that DO NOT lie on the same line?
Non-collinear
150
Two lines that intersect at a 90-degree angle (right angle)?
Perpendicular
200
An angle with a degree measure less than 90-degrees?
Acute Angle
200
Two lines that never intersect?
Parallel Lines
200
Two angles that have the same measure?
Congruent Angles
200
An angle with a degree measure greater than 90-degrees?
Obtuse Angle
200
An angle with a degree measure of 180?
Straight Angle
250
The formula used to find the distance between two points on a coordinate plane?
Distance Formula
250
The part of a line that consists of one endpoint and all the points on one side of the endpoint?
Ray
250
A segment, line, or plane that intersects a segment at its midpoint?
Segment Bisector
250
Consists of infinitely many points and lines on a flat surface that extends without end and has no thickness?
Plane
250
The common endpoint of an angle (where the two rays/sides intersect)?
Vertex
300
A line, segment, or ray perpendicular to a segment at its midpoint?
Perpendicular Bisector
300
Formed by two rays with the same endpoint. Each ray is a side and the common endpoint is the vertex.
Angle
300
If point D is in the interior of ∠ ABC, then m∠ ABD + m∠ DBC = m∠ ABC.
Angle Addition Postulate
300
If A, B, and C are collinear points and B is between A and C, then AB + BC = AC.
Segment Addition Postulate
300
Formula used to find the midpoint between two end points?
Midpoint Formula
400
The point on a segment that divides the segment into two congruent segments?
Midpoint
400
A line, ray, or segment that intersects a segment at its midpoint and divides it into two equal parts?
Bisect
400
Rays with the same endpoint that lie on the same line?
Opposite Rays
400
Created when a ray divides an angle into two congruent angles?
Angle Bisector
400
How you know from a picture that two line segments/angles are congruent.
Tick marks and arc marks.