Chapter 1

Question 1

Point

Answer 1

A point has no dimension. It is represented by a dot and only shows location (named with a dot and a letter next to it) •A

Question 2

Line

Answer 2

Has one dimension. It is represented by a line with two arrowheads, but it extends without end (named by TWO letters)

Question 3

Plane

Answer 3

Two dimensions. It is represented by a shape that looks like a floor or a wall, but it extends without end.

Question 4

Collinear points

Answer 4

Points that lie on the same line

Question 5

Coplanar points

Answer 5

Points that lie on the same plane

Question 6

Line segment

Answer 6

A portion of a line that has two endpoints

Question 7

Ray

Answer 7

Consists of one endpoint and extends in opposite direction without end

Question 8

Opposite rays

Answer 8

Rays opposite to one another on a line

Question 9

The intersection of two different lines is a ______

Answer 9

Point

Question 10

The intersection of two different planes is a ______

Answer 10

Line

Question 11

Postulate

Answer 11

A rule that is accepted without proof

Question 12

Coordinate

Answer 12

Real number that corresponds to a point

Question 13

Distance

Answer 13

Is the absolute value between two coordinates

Question 14

Congruent

Answer 14

Equal lengths

Question 15

Segment Addition Postulate

Answer 15

Two parts of the line segment make up the whole line segment

Question 16

Ruler Addition Postulate

Answer 16

Distance between points A and B is the real value of B minus the real value of A

Question 17

Distance Formula

Answer 17

(Yankee doodle)
To find the distance of a line
You draw a long square root
Its x2 minus x1 squared
Plus y2 minus y1 squared

Question 18

Midpoint Formula

Answer 18

(Yankee doodle)
Then to find the midpoint this is what you dooooo
Add the x’s and the y’s then divide them both by 2

Question 19

Segment Bisector

Answer 19

Ray, point, line, line segment, or plane that intersects the segment at its midpoint

Question 20

Angles

Answer 20

Consists of 2 different rays with the same endpoint

Question 21

Side

Answer 21

Rays that make up an angle

Question 22

Vertex

Answer 22

The endpoints of an angle

Question 23

Protractor postulate

Answer 23

The measure of the angle is the absolute value between the real numbers for the sides

Question 24

Angle addition postulate

Answer 24

2 angles added together equal the angle they are within

Question 25

Congruent angles

Answer 25

Angles that have the same measure

Question 26

Angle bisector

Answer 26

A ray that divides an angle into two anhles that are congruent

Question 27

Complementary angles

Answer 27

90

Question 28

Supplementary angles

Answer 28

180

Question 29

Adjacent angles

Answer 29

Two angles that share a common vertex and side BUT have no common interior points

Question 30

Linear pair

Answer 30

Non common sides of adjacent angles are opposite rays

Question 31

Vertical angles

Answer 31

Two pairs of opposite rays

Question 32

Polygon

Answer 32

Closed plane figure formed by 3 or more segments

Question 33

Convex

Answer 33

Doesn’t cave in

Question 34

Concave

Answer 34

Caves in

Question 35

Equilateral polygon

Answer 35

All sides are congruent

Question 36

Equiangular polygon

Answer 36

All angles are congruent

Question 37

Regular polygon

Answer 37

All sides and all angles equal

Question 38

N-gon

Answer 38

Number and then gon