# Vocabulary 1: Points, Lines & Planes

47 Questions | Total Attempts: 32  Settings  Related Topics
• 1.
A segment line or plane that intersects a segment at its midpoint.
• 2.
In a right triangle, the sum of the square of the measures of the legs equals the square of the measure of the hypotenuse.
• 3.
Intersecting lines that form four right angles.
• 4.
An object consisting of two noncollinear rays with a common endpoint.
• 5.
If M is the midpoint of AB, then AM = MB.
• 6.
A boundless n-dimensional set of all points.
• 7.
Adjective describing a set of points, all of which lie on the same plane
• 8.
Unit of measure for angles.
• 9.
A straight path connecting two points that can be extended indefinitely far in either direction.
• 10.
A set of points that are neither on the sides of the angle nor in the interior of the angle.
• 11.
If Q is between P and R, then PQ + QR = PR, orIf PQ + QR = PR, then Q is between P and R.
• 12.
The first coordinate in an ordered pair.
• 13.
If R is in the interior of ےPQS, then mےPQR + mےRQS = mےPQS andIf mےPQR + mےRQS = mےPQS, then R is in the interior of ےPQS.
• 14.
The points that do not lie on the sides of an angle, but do lie on a line segment that connects the two sides of an angle.
• 15.
On a measured line, the midpoint of a segment whose endpoints have the measures a and b is (a + b)/2 In a coordinate plane, the midpoint of a segment with ends at (x1, y1) and (x2, y2) is at ((x1 + x2)/2, (y1 + y2)/2).
• 16.
A part of a line that extends indefinitely far in one direction.
• 17.
Preposition to indictate the location of a point collinear with two points found in opposite directions.
• 18.
A flat surface that extends indefinitely far in all directions.
• 19.
Collinear rays in opposite directions defined by a common endpoint.
• 20.
The common endpoint of two rays that define an angle
• 21.
The commonly used horizontal number line
• 22.
Two angles, not necessarily adjacent, whose measures have a sum of 180.
• 23.
An angle whose measure is less than 90 degrees.
• 24.
The number of square units contained in the interior of a figure.
• 25.
The name of a point in the coordinate plane.
• 26.
The postulate that says points on any line can be paired with real numbers such that, given any two points P and Q on the line, P corresponds to zero and Q corresponds to a positive number.
• 27.
Euclidean geometric shapes that do not all lie in the same plane.
• 28.
An angle whose measure is more than 90 degrees.
• 29.
The angle formed by two opposite rays.
• 30.
Adjective that describes a set of points because not all of them lie on the same line.
• 31.
A point M on line PQ between P and Q such that PM = MQ.
• 32.
Adjacent angles whose noncommon sides are opposite rays.
• 33.
The set of points common to two objects.
• 34.
An adjective describing a set of points all of which lie in the same plane.
• 35.
A unique location in space.
• 36.
The four regions divided by the x and y axes.
• 37.
Correspondence between a geometric object and a tool used for measuring such objects.
• 38.
Two angles whose measures have a sum of 90.
• 39.
The name for the formula for the separation between any two points with coordinates (x1, y1) and (x2, y2) :                        d = √((x2 - x1)2 + (y2 - y1)2)
• 40.
The distance around a figure.
• 41.
Two nonadjacent angles formed by two intersecting lines.
• 42.
An angle whose measure is 90 degrees.
• 43.
Angles in the same plane that have a common vertex and a common side, but no common interior points.
• 44.
Name for the two rays that define an angle.
• 45.
Intersection of the x-axis and the y-axis.
• 46.
The algebraic space for plotting points.
• 47.
The second coordinate in a numbered pair.