
Practice Work: Geometry Lessons 2.1 - 2.3
Authored by Roldan Corpuz
Mathematics
9th - 12th Grade
CCSS covered
Used 43+ times

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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which counterexample shows that the following conjecture is false: “If angle 1 and angle 2 are supplementary, then one of the angles is obtuse”?
angle 1 = 45° and angle 2 = 45°
angle 1 = 53° and angle 2 = 127°
angle 1 = 90° and angle 2 = 90°
angle 1 = 100° and angle 2 = 80°
Tags
CCSS.7.G.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which conjecture is true?
An even number plus 3 is always even.
An even number plus 3 is always prime.
An even number plus 3 is always odd.
A prime number plus 3 is always even
Tags
CCSS.3.OA.D.9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the converse of the conditional statement “If it is January, then it is winter in the United States,” ?
If it is winter in the United States, then it is January.
If it is not winter in the United States, then it is not January.
If it is not winter in the United States, then it is not January.
Not here
Tags
CCSS.RL.11-12.9
CCSS.RL.6.3
CCSS.RL.7.3
CCSS.RL.8.3
CCSS.RL.9-10.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the inverse of the conditional statement “If a number is divisible by 6, then it is divisible by 3”?
If a number is divisible by 3, then it is divisible by 6.
If a number is not divisible by 6, then it is not divisible by 3
If a number is not divisible by 3, then it is not divisible by 6.
If a number is not divisible by 6, then it is divisible by 3.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given: If one angle of a triangle is a right angle, then the other two angles are both acute. A triangle has a 45 angle.
What conclusion can be drawn?
One of the other two angles is 90°.
One of the other two angles is obtuse.
All three angles are acute.
No conclusion can be drawn.
Tags
CCSS.8.G.A.5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which symbolic statement represents the Law of Syllogism?
If p ---> q and q ---> r are true statements, then p ---> r is a true statement.
If p ---> q and p ---> r are true statements, then q ---> r is a true statement.
If p ---> q and r ---> q are true statements, then q ---> p is a true statement.
If p ---> r and q ® r are true statements, then p ---> q is a true statement.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is a biconditional statement of the conditional statement “If x3 = -1, then x = -1”?
If x = -1, then x3 = -1.
x3 = -1 if x = -1.
x3 = -1 if and only if x = -1.
x = -1 ---> x3 = -1.
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