Geometry Intro to Proofs
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given: <1 and <2 are a linear pair. Conclusion: m<1 + m<2 = 180. What is the reason that allows you to draw that conclusion?
Angle addition postulate
Definition of straight angle
Linear Pair Postulate
Definition of supplementary
Tags
CCSS.7.G.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given: AB is the segment bisector of PQ. What conclusion can you draw?
PF = QF
F is the midpoint of PQ
m<PFA = m<QFA
<PFQ is a straight angle
Tags
CCSS.HSG.CO.C.10
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following conclusions CANNOT be drawn just by looking at the diagram?
GH and AB intersect at D
<GDA and <HDB are vertical angles
D is the midpoint of GH
G, D, and H are collinear
Tags
CCSS.4.G.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following CAN you conclude from the diagram?
lines l and m are perpendicular
<a and <b are adjacent
<a and <b are complementary
m<a = m<b
Tags
CCSS.4.G.A.1
CCSS.HSG.CO.A.1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given: PL is the angle bisector of <RPQ
What can you conclude by definition of angle bisector?
m<RPL = m<LPQ
<RPL + m<LPQ = m<RPQ
<RPQ is acute
m<RPQ = 90
Tags
CCSS.HSG.CO.C.9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the justification?
Symmetric Prop.
Angle addition postulate
Reflexive Prop
Transitive Prop.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the given proof, what is the statement for step 2?
Tags
CCSS.HSG.CO.C.9
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