Chapter 1

Question 1

points

Answer 1

(dot) can make lines segs rays or angles from them

Question 2

lines

Answer 2

(lines with arrows)made up of points that are straight

Question 3

line segments

Answer 3

(line without arrows) segs that are made from points that’s are straight and have a definite beginning and end

Question 4

ray

Answer 4

(line with one arrow) have one endpoint and one side that extends infinitely

Question 5

angle

Answer 5

two rays

Question 6

triangle

Answer 6

has three segs as its sides

Question 7

union

Answer 7

when all parts are combined (u)

Question 8

intersection

Answer 8

overlap or intersection of parts (upside down u)

Question 9

acute angle

Answer 9

less than 90 more than 0

Question 10

right angle

Answer 10

90

Question 11

obtuse angle

Answer 11

less than 180 more than 90

Question 12

straight angle

Answer 12

180

Question 13

congruent

Answer 13

same measure or lenght

Question 14

degree

Answer 14

(0)

Question 15

minute

Answer 15

(‘)

Question 16

second

Answer 16

(“)

Question 17

converting degrees minutes and seconds into decimals

Answer 17

1 leave the degree alone
2 convert minutes into degrees; multiply by a fraction 1/60’
3 convert seconds into degrees; multiply by how many seconds are in a degree 1/3600’
4 add and use degree symbol

Question 18

converting decimals into degrees minutes and seconds

Answer 18

1 leave the degrees alone
2 take your decimal or fraction and multiply by 60’/1
3 use degrees minutes and seconds and see notation

Question 19

collinear

Answer 19

points that lie on the same line

Question 20

noncollinear

Answer 20

points that do not lie on the same line

Question 21

betweeness

Answer 21

to say a point is between two other points, all three points must be collinear

Question 22

can assume

Answer 22

straight lines
straight angles
collinearity of points
betweeness of points

Question 23

cannot assume

Answer 23

right angles
congruent segs
congruent angles
relative size of angels or segs

Question 24

midpoint

Answer 24

if a pt is a midpoint then it divides the seg into 2 congruent segs

Question 25

seg bisector

Answer 25

if a seg is bisected then it is divides into 2 congruent segs

Question 26

seg trisectors

Answer 26

if a seg is trisected then it is divided into three congruent segs

Question 27

angle bisector

Answer 27

if 2 rays bis an angle then it divides the angle into 2 congruent angles

Question 28

angle trisector

Answer 28

if a ray trisects an angle then it divides the angle into 3 congruent angles

Question 29

conditional

Answer 29

if then p then q

Question 30

converse

Answer 30

opp of conditional q then p

Question 31

inverse

Answer 31

not p then npt q

Question 32

contrapositive

Answer 32

not q then not p

Question 33

probabilities

Answer 33

winners over the total number of possibilites

Question 34

area of a square

Answer 34

sides squared

Question 35

area of a rectangle

Answer 35

length time height

Question 36

area of a triangle

Answer 36

1/2 base times height

Question 37

area of a triangle

Answer 37

pi radius squared

Question 38

probability

Answer 38

shaded area/total area