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Name
Geometry A
k~
Unit 4: Proof Review
t
Complete the following pro~fs.
1. Given: l II m
Prove: L4 & L6 are supplementary
*Llti
.©JLll m_,, @ L-'1
0-.r~
LJ)t\S . \{)"t.,
l. 6i'l,,(,n
2-. D--<l1 . of
~Om.Q.. S \ d-a-
\f\-\@ S(lnt.Q., ~'tel.a. lnt- Lts 1\'lfYl-,
L4 + L le ()./'(_ Su.pp.
=
t
2. Given: L3 L6
Prove: lllm
©l31=:.L~
(D G1\len
O.f'.e... a.H-@ Pi,f at
@L3+L(p
3
@)
¥/
JL ll rYL
Alt.
Rlt.
tn+L'~E-------~;._,...--~m
1
\n+ L's Torn..
3. Given: mlln; L12=L3
Prove: klll
0tn\\l'\,
@L1~L2.(U'(__
(Dbi'U.11
Ql+. .eJ>Gt L's
Dcl PYH-. E\ct l 1s
3 A-lt. E~:t L
TufY\
lt --tmn.s 'rn\l,C,
5 - brl.J-. Prl+-.
®
\n+-L 's
R-l+. \f\-t- L Tom
4. Given: pllq; <1 and <4 are supplementary
Prove: rlls
--------1------:. -- \
CDplli) @Lttotl3~©G1-.ieri
w
CD
SOJkL <;; \d.Q H\*
Li-~L3.
.
8upp.
Clre...
s~ 8;\~ \rn L(s
S~-p P· ThrY\
I
D.Lf- C.,or-r.
4-
r....
\.J. .N"'r.
Llr:::t.3
L3
@ LI
~,
3 g()Jh_Q_ <2;\(lo. \ni-, Turn
Ll~LL.\-~ ~
'
Su.pp
Dt.A-.
.'·1,., .
J.,, '/
co«. . {j)
.
y\\&
L. 1S
L's Tum .
r
5. Given: r II s; <1 and <4 are supplementary
Prove: p II q
\ {:j\ '«:.,n
s
a DL+ . s(}J\u_ s( d.o
' cvr ·
s(}J\..Q., - s.\cu L ,s 71\ VY)
Su.pp Tom
5pe&rr
L'<s,
car-r L's 1hl"Y\..J
1 2
3 4
5 6
7 8
a
10
12
13 14
15 16
b
9
11
!
C
CD
Q\I b @ u-1~L10 a.re,
.San....L &'\cu \f\\-
CD C:H"\tcr\
;i.
L4-+ LIO
_(l.U_
8upp .
G) Gl\cl @ L~'1-L 7 a.re..
~,cu. \n+
@
~
L4 cl-L_l
.
0-AQ.__
, --@ ll~LIO
~u.p:)
d
~f
SQjn_Q_ S'iili \r\\-
S()JJU., <;', dJ. .\r\t
tf
mm. .
-~-f-. SOftU 8l d...Q. \n+- ·
&.m.!. glu.Q \nt 1hm
@ :Su.pp. ThrYI .