Clickers
Bellwork
•Find the distance between (1,4) & (-9,22)
•What is the midpoint of that same line?
Bellwork Solution
•Find the distance between (1,4) & (-9,22)
(22  4)  (9  1)
2
(18)  (10)
2
324  100
424
2 106
2
2
Bellwork Solution
•What is the midpoint of that same line?
 1  9 4  22 
,


2 
 2
 8 26 
 , 
 2 2 
 4,13
Homework
Due on Friday
•Chapter 1 Test 1-22
•Chapter 2 Test 1-13
Quiz #1
Points A, B, E and F are coplanar
E
C
A
B
G
F
A. True
B. False
Find the measure of AC
Quiz #1
C
20
B
15
A
A. 5
B. 25
C. 35
Quiz #2
Find the measure of BC, if AC=42
C
B
15
A
A. 27
B. 30
C. 57
Quiz #3
Find the measure of AB, if AC=50
C
B
A
A. 25
B. 75
C. 100
Quiz #4
Find the measure of AB, if AC=22
C
x-1
B
3x-1
A
A. 5
B. 6
C. 17
Quiz #5
Find the distance between (17,3) & (21,-13)
A. 2 29
B. 4 17
C. 2 338
Quiz #6
Find the distance between (1,1) & (3,4)
A. 5
B. 13
C. 6
Quiz #7
Find the midpoint of the line that exists between
(1,1) & (3,4)
A. (1,1.5)
B. (2.5, 2)
C. (2, 2.5)
Quiz #8
Find the midpoint of the line that exists between
(-1,-5) & (9,1)
A. (-3,5)
B. (4,-2)
C. (-5,-3)
Quiz #9
Is the angle acute, right, obtuse or straight?
A.
B.
C.
D.
Acute
Right
Obtuse
Straight
Quiz #10
Is the angle acute, right, obtuse or straight?
A.
B.
C.
D.
Acute
Right
Obtuse
Straight
Quiz #11
Is the angle acute, right, obtuse or straight?
A.
B.
C.
D.
Acute
Right
Obtuse
Straight
Quiz #12
Is the angle acute, right, obtuse or straight?
A.
B.
C.
D.
Acute
Right
Obtuse
Straight
Quiz #13
What is the measure of the angle’s complement?
22o
A. 44
B. 68
C. 158
Quiz #14
What is the measure of the angle’s supplement?
114o
A. 24
B. 57
C. 66
Quiz #15
An angle’s supplement is 5 times the original angle. What is the
measure of the original angle?
A.
B.
C.
D.
15
18
30
36
Quiz #16
Is the polygon convex or concave?
A. Convex
B. Concave
Quiz #17
Is the polygon convex or concave?
A. Convex
B. Concave
Quiz #18
Is the polygon convex or concave?
A. Convex
B. Concave
Quiz #19
Is the polygon equilateral, equiangular or regular?
A.
B.
C.
D.
Equilateral
Equiangular
Regular
None
Quiz #20
Is the polygon equilateral, equiangular or regular?
A.
B.
C.
D.
Equilateral
Equiangular
Regular
None
Quiz #21
Is the polygon equilateral, equiangular or regular?
A.
B.
C.
D.
Equilateral
Equiangular
Regular
None
Quiz #22
A septagon has how many sides?
A. 5
B. 7
C. 8
Quiz #23
What is the name of the polygon?
A. Rectangle
B. Pentagon
C. Hexagon
Quiz #24
What is the name of the polygon?
A. Square
B. Hexagon
C. Octagon
Quiz #28
6
8
What is the perimeter?
A. 14
B. 28
C. 48
Quiz #29
12
18
15
What is the perimeter?
A. 27
B. 30
C. 45
Quiz #30
What is the perimeter of a polygon whose vertices are (0,0), (4,0) &
(2,2)
What is the perimeter?
A. 5.65
B. 8
C. 9.65
Quiz #31
15
What is the circumference?
A. 47.1
B. 94.2
C. 706.5
Quiz #32
6
8
What is the area?
A. 10 units2
B. 28 units2
C. 48 units2
D. 62 units2
Quiz #33
What is the area?
A. 22 units2
B. 30 units2
C. 60 units2
D. 120 units2
12
10
Quiz #34
4
6
4
What is the area?
A. 30 units2
B. 32 units2
C. 40 units2
D. 50 units2
Quiz #35
10
What is the area?
A. 31.4 units2
B. 62.8 units2
C. 314 units2
Quiz #36
Which of the following conjectures is best considering the
following information
“You
have decided to eat school lunch today. Everyone else in
the cafeteria is eating ravioli. There menu says that they’re
serving ravioli only”
A. You’re going to eat a sack lunch
B. Ravioli is usually filled with meat or cheese
C. You’re going to be eating ravioli for lunch
Quiz #37
Which of the following are the next three terms in the sequence
•
α, β, γ, π, σ, α, β, γ…
A. α, β, π
B. π, σ, α
C. α, β, γ
Quiz #38
Which of the following conditional statements, best fits the
statement below
“Cold
A.
B.
C.
D.
temperatures and windy conditions make a low wind chill”
If it’s cold and windy outside, then the wind chill is low
If the wind chill is low, then it’s cold and windy outside.
If it’s cold outside, then the wind makes the wind chill
If it is windy, then the wind chill is extra cold
Quiz #39
Use the Law of Detachment and the information below to make a
conjecture
“If
A.
B.
C.
D.
you are asleep during class, then you won’t learn the material.
You slept during class”
You feel refreshed
You drooled on your notebook
You did well on the test
You didn’t learn the material
Quiz #40
Use the Law of Syllogism and the information below to make a
conjecture
“If
you were asleep during class, then you won’t learn the material.
If you didn’t learn the material, then you won’t do well on the test”
A. If you didn’t learn the material, then you where asleep during
class
B. If you were asleep during class, then you won’t do well on
the test
C. If you won’t do well on the test, then you will sleep during
class
Quiz #41
What postulate is exemplified in the following example
If A
B
E
C
D
then
A.
B.
C.
D.
E.
AB  BE  AE
Postulate 1
Postulate 2
Postulate 5
Postulate 6
Postulate 8
Quiz #42
What postulate is exemplified in the following example
If A
D
then A
A.
B.
C.
D.
E.
Postulate 1
Postulate 2
Postulate 5
Postulate 6
Postulate 8
D
Quiz #43
What postulate is exemplified in the following example
A
D
A.
B.
C.
D.
E.
Postulate 3
Postulate 8
Postulate 9
Postulate 10
Postulate 11
Quiz #4ish
Practice using the Law of Syllogism
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
If you are a UA student, then you are wearing a belt
If you are eating Spaghetti O’s, then you have a can opener
If an angle is obtuse, then it can only have a supplement
If two lines share a point, then they are not parallel
If a polygon is regular, then it is convex
If the distance formula is being used, then it is a line segment
If a red card is played, then it is not a Spade or Club
If the room is round, then it is not able to be carpeted
If the plane is named ABC, then A, B, & C are coplanar
If you are in Geometry, then you are not in 6th period.
D&S Worksheet
Question #1
#1
A.
B.
C.
D.
Question #2
#2
A.
B.
C.
D.
Question #3
#3
A.
B.
C.
D.
Question #4
•
•
•
•
I can’t afford to buy a ticket
I can afford to buy a ticket
I haven’t gotten a job
I don’t like movies
Question #5
Answers
•
•
•
•
Question #6
•
•
•
•
B has a measure of 45o
B is a complement
B has a measure of 90o
B is obtuse
Question #7
•
•
•
•
A is acute
A is obtuse
A is right
Not possible
Question #8
•
•
•
•
ABCD is a parallelogram
ABCD is a rectangle
ABCD is a quadrilateral
Not possible
Question #9
Answers
•
•
•
•
Question #10
•
•
•
•
If its molecular structure is H20, then the substance is water
If it is water, then it’s freezing point is 0 C
If it isn’t water, then it’s boiling point at sea level is not 100oC
If it is water, then it’s boiling point at sea level is 100oC
Question #11
•
•
•
•
If a country’s population is more than 1.033 billion, then it has
the highest population in the world
If a country’s population is greater than India’s, then it has the
highest population in the world
If it is the highest populated country in the world, then it has a
population more than 1.033 billion.
If it is India, then there’s a lot of people there
Question #12
Answers
A.
B.
C.
D.
Question #13
•
•
•
•
If a number ends in zero, then it is divisible by 25
If a number is divisible by 5, then it ends in zero
If a number ends in zero, then it is divisible by 5
If a number is divisible by 5, then it is a multiple of 10
Question #14
Answers
A.
B.
C.
D.
Question #15
•
•
•
•
•
Smiley needs to go on a diet
Elephants can weigh more than a car
Bridges are made to hold multiple cars
Smiley can’t ride in Jill’s car
Smiley is to heavy for the bridge
Question #16
i
•
•
•
Must be true
May be true
Is not true
Question #16
ii
•
•
•
Must be true
May be true
Is not true
Question #16
iii
•
•
•
Must be true
May be true
Is not true