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StatementsReasons Substitution property Vertical Angles Theorem ASA Postulate Given CPCTC Definition of Perpendicular
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Chapter 4 Review
Cut-n-Paste Proofs
Statements Reasons
X
C
D
B
A SAS PostulateX is midpoint of AC
Definition of Midpoint
BXADXC
DXBX
GivenVertical Angles Theorem
X is midpoint of BDBXADXC
XCAX
Statements Reasons
S
V
TU
R 90R
RSVR
Substitution property
Vertical Angles TheoremUSTRSV
ASA PostulateGivenSUUT
CPCTC90U
Definition of PerpendicularUR
TUVR
USTRSV
USRS
Statements Reasons
C
A
DE
B
CEBC GivenDEAB ||
AAS Theorem
EB
AD bisects BE
Alternate Interior Angles Theorem
Definition of BisectorDA
DECABC
Statements Reasons
O M
L
N
NMOLMO
NMLM
SAS Postulate
CPCTCReflexive Property
NL
OM bisects /LMN
OMOM
GivenNMOLMO
Definition of Bisector
statements reasons
O
M PN ONMONP Definition of Bisector
90ONM
Substitution Property
MPNO
Given
Definition of Perpendicular
NO bisects /POM
Reflexive Property
ASA Postulate90ONP
NONO
PNOMNO
MONPON
statements reasons
KM R
G
Defintion of Midpoint
GKGK
ΔMGR is an isosceles triangle with vertex /MGR
Definition of Isosceles Triangle
GRMG
RGKMGK
Reflexive Property
Given
K is the midpoint of MR
KRMK
SSS Postulate