Study prep for Unit 1 quiz: Units 1-3 to 1-7

Question 1

Length of a segment?

Answer 1

The positive real number that is the distance between the endpoints.
The length is written as AB.
Notation: AB

Question 2

Bisect?

Answer 2

A midpoint is said to bisect a segment because it divides the segment into 2 congruent segments.

Question 3

Between?

Answer 3

To be between 2 points, a point must lie on the same line that is defined by the 2 points.

Question 4

Line?

Answer 4

A geometrical object with zero thickness and zero width that is infinitely long.
Notation: Line AB or
AB with a line over top of it.

Question 5

Interior of an angle?

Answer 5

All the points between the 2 rays that form the angle.

Question 6

Exterior of an angle?

Answer 6

All the points outside the 2 rays forming the angle.

Question 7

Vertex of an angle?

Answer 7

The common endpoint of the 2 rays forming an angle.

Question 8

Angle?

Answer 8

A figure made of 2 noncollinear rays with a shared endpoint.
Notation: <ABC, m<ABC, <A, <1
<1 is only used if the figure has the angle labeled as 1.

Question 9

Perpendicular Bisector?

Answer 9

A line or line segment that intersects a second line segment at right angles and divides it into 2 congruent parts.

Question 10

Non coplanar points?

Answer 10

4 or more points that do not lie on the same plane.

Question 11

Opposite rays?

Answer 11

Rays that share a common endpoints and extend in opposite directions on the same line.

Question 12

Skew lines?

Answer 12

Noncoplanar therefore are not parallel and they do not intersect.

Question 13

Coplanar Points?

Answer 13

3 or more points that lie on the same plane.

Question 14

Vertical angles?

Answer 14

2 sets of angles whose sides are opposite rays.

Question 15

Intersection?

Answer 15

The set of all points common to 2 (or more) entities.

Question 16

Sides of an angle?

Answer 16

The 2 rays that make up the angle.

Question 17

Parallel lines?

Answer 17

Coplanar lines that do not intersect.
Notation: 2 lines that have this symbol > drawn in the middle of them.

Question 18

Line segment?

Answer 18

Part of a line consisting of 2 endpoints and all the points between them.
Notation: Segment AB or AB with
a line segment drawn over it.

Question 19

Collinear rays?

Answer 19

Two rays that lie on the same line.

Question 20

Noncollinear rays?

Answer 20

Rays that do not lie on the same line.

Question 21

Coplanar lines?

Answer 21

Lines that lie on the same line.

Question 22

Space?

Answer 22

A region usually a 3-dimensional region, in which points can be located.

Question 23

Collinear points?

Answer 23

2 or more points that lie on the same line.

Question 24

Adjacent angles?

Answer 24

2 coplanar angles with a common side, common vertex, and no common interior points.

Question 25

Point?

Answer 25

A precise location in space with zero length, zero width, and zero depth. Points can be represented in diagrams by a dot and a capital letter.
Notation: Point A or
. A

Question 26

Plane?

Answer 26

A flat surface with zero thickness that is infinitely long and infinitely wide.

Question 27

Midpoint?

Answer 27

A point that divides the segment into 2 congruent segments.

Question 28

Congruent segments?

Answer 28

Segments with the same length.
Notation: = with squiggly line above it
Example: Line segment AB is = (with squiggly line above it) to Line segment CD.

Question 29

Non collinear?

Answer 29

3 or more points that do not lie on the same line.

Question 30

Opposite rays?

Answer 30

2 collinear rays with the same endpoint extending in different directions.

Question 31

Angle bisector?

Answer 31

A ray that divides an angle into 2 congruent angles.