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Name _______________________________________ Date ___________________ Class __________________
Choose the best answer.
1. What is the next value in the sequence?
3, -1, 1/3, -1/9,
A -1/27
C -1/15
B 1/27
D 1/15
2. Which is the counterexample that proves
the conjecture false?
“If two rays have the same endpoint, then
they are opposite rays.”
F
G
5. What is the converse of the statement
“If two coplanar lines do not intersect,
then they are parallel”?
A If two coplanar lines do not intersect,
then they are not parallel.
B If two coplanar lines intersect, then
they are not parallel.
C If two lines are parallel, then they are
coplanar and do not intersect.
D If two coplanar lines are not parallel,
then they intersect.
H
J
3. Identify the hypothesis of the conditional
statement “Two angles are
supplementary if the sum of their
measures is 180 degrees.”
A if
B Two angles are supplementary
C the sum of their measures is
180 degrees
D Two angles are supplementary if the
sum of their measures is 180
degrees.
4. Which conditional statement has the
same truth value as this statement?
“The sum of two even numbers is even.”
F If two even numbers are added, then
their sum is even.
G If an even and odd number are
added, then their sum is even.
6. Which conjecture is valid by the Law of
Syllogism for the following scenario?
“If Joe buys Nancy a card, he will give it
to her. If Nancy is having a birthday, then
Joe will buy her a card.”
F If Nancy is having a birthday, then
Joe will give her a card.
G If Joe buys Nancy a card, then she
is having a birthday.
H If Joe gives Nancy a card, then he
bought the card.
J If Joe gives Nancy a card, then she
is having a birthday.
7. Consider the related biconditional
statement for the conditional statement “If
Bob lives in Wasilla, then she lives in the
Alaska.”
Which of the following statements is true
about the related biconditional
statement?
A The biconditional is true because the
conditional is true.
H If two even numbers are multiplied,
then their product is odd.
B The biconditional is false because
the conditional and its converse are
false.
J If two odd numbers are multiplied,
then their product is even.
C The biconditional is true because the
conditional and its converse are true.
D The biconditional is false because
the converse of the conditional is
false.
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Geometry
Name _______________________________________ Date ___________________ Class __________________
Answers
1. B
5. C
2. H
6. F
3. C
7. D
4. F
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Geometry