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Given: KP = ST PR = TV Prove: KR = SV Given: m 1 = m 3 Prove: m ...

Given: KP = ST PR = TV Prove: KR = SV Given: m 1 = m 3 Prove: m ...

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#1.)<br />

Section 2.2 ­ Introduction to Proofs<br />

K P<br />

R<br />

S<br />

T<br />

<strong>Given</strong>: <strong>KP</strong> = <strong>ST</strong><br />

<strong>PR</strong> = <strong>TV</strong><br />

<strong>Prove</strong>: <strong>KR</strong> = <strong>SV</strong><br />

#2.)<br />

#3.)<br />

H<br />

1 2<br />

D E<br />

3<br />

G<br />

V<br />

F<br />

<strong>Given</strong>: m 1 = m 3<br />

<strong>Prove</strong>: m DEG = m HEF<br />

G<br />

1<br />

2<br />

A B<br />

C<br />

F<br />

Statements Reasons<br />

1.) _____________________ 1.) <strong>Given</strong><br />

2.) <strong>KP</strong> + <strong>PR</strong> = <strong>ST</strong> + <strong>TV</strong> 2.) _______________________<br />

3.) <strong>KP</strong> + <strong>PR</strong> = <strong>KR</strong> 3.) _______________________<br />

<strong>ST</strong> + <strong>TV</strong> = <strong>SV</strong><br />

4.) _____________________ 4.) Substitution Property<br />

Statements Reasons<br />

1.) _____________________ 1.) <strong>Given</strong><br />

2.) m 2 = m 2 2.) _______________________<br />

3.) m 1 + m 2 = m 2 + m 3 3.) _______________________<br />

4.) m DEG = m 1 + m 2 4.) _______________________<br />

m HEF = m 2 + m 3<br />

5.) m DEG = m HEF 5.) _______________________<br />

4<br />

E<br />

Statements Reasons<br />

1.) m 1 = m 3 1.) _______________________<br />

m 2 = m 4<br />

2.) _______________________ 2.) ADD <strong>PR</strong>OP =<br />

3.) m ABC = m 1 + m 2 3.) _______________________<br />

m DEF = m 3 + m 4<br />

4.) 4.) SUB<strong>ST</strong>ITUTION<br />

3<br />

H<br />

D<br />

<strong>Given</strong>: m 1 = m 3<br />

m 2 = m 4<br />

<strong>Prove</strong>: m ABC = m DEF<br />

1


#4.) R<br />

#5.)<br />

#6.)<br />

Q<br />

S<br />

<strong>Given</strong>: RS = PS<br />

<strong>ST</strong> = SQ<br />

<strong>Prove</strong>: RT = PQ<br />

T<br />

P<br />

S I<br />

T<br />

R U N<br />

A<br />

<strong>Given</strong>: <strong>ST</strong> = RN<br />

IT = RU<br />

<strong>Prove</strong>: SI = UN<br />

E<br />

I<br />

1<br />

2<br />

3<br />

O U<br />

<strong>Given</strong>: m AOI = m EOU<br />

<strong>Prove</strong>: m 1 = m 3<br />

Statements Reasons<br />

1.) RS = PS; <strong>ST</strong> = SQ 1.)<br />

2.) RS + <strong>ST</strong> = PS + SQ 2.)<br />

3.) 3.) SAP<br />

4.) RT = PQ 4.)<br />

Statements Reasons<br />

1.) 1.) <strong>Given</strong><br />

2.) <strong>ST</strong> = SI + IT 2.)<br />

RN = RU + UN<br />

3.) 3.) Substitution =<br />

4.) SI = UN 4.)<br />

Statements Reasons<br />

1.) _____________________ 1.) <strong>Given</strong><br />

2.) m 2 = m 2 2.) _______________________<br />

3.) m 1 + m 2 = m AOI 3.) _______________________<br />

m 2 + m 3 = m EOU<br />

4.) m 1 + m 2 = m 2 + m 3 4.) _______________________<br />

5.) 5.) _______________________<br />

2


#7.)<br />

#8.)<br />

#9.)<br />

1 2 3 4<br />

<strong>Given</strong>: m 1 = m 4<br />

<strong>Prove</strong>: m 2 = m 3<br />

B<br />

A E D C<br />

Q<br />

<strong>Given</strong>: AE = DC<br />

<strong>Prove</strong>: AD = EC<br />

R<br />

S<br />

<strong>Given</strong>: QR = TU<br />

RS = TS<br />

<strong>Prove</strong>: QS = US<br />

T<br />

U<br />

Statements Reasons<br />

1.) m 1 + m 2 = 180 1.) _______________________<br />

m 3 + m 4 = 180<br />

2.) m 1 + m 2 = m 3 + m 4 2.) _______________________<br />

3.) 3.) <strong>Given</strong><br />

4.) 4.)<br />

Statements Reasons<br />

1.) AE = DC 1.) _______________________<br />

2.) ED = ED 2.) _______________________<br />

3.) AE + ED = ED + DC 3.) _______________________<br />

4.) AD = AE + ED 4.) ______________________<br />

EC = ED + DC<br />

5.) AD = EC 5.) ______________________<br />

Statements Reasons<br />

1.) _______________________ 1.) <strong>Given</strong><br />

_______________________<br />

2.) _______________________ 2.) Add Prop =<br />

3.) _______________________ 3.) SAP<br />

_______________________<br />

4.) ______________________ 4.) Substitution Prop =<br />

3


#10.)<br />

#11.)<br />

3<br />

1<br />

2<br />

<strong>Given</strong>: m 1 + m 2 = 90<br />

m 2 = m 3<br />

<strong>Prove</strong>: m 1 + m 3 = 90<br />

B<br />

2 3<br />

1<br />

4<br />

A D C<br />

<strong>Given</strong>: m 1 + m 2 = 90<br />

m 3 + m 4 = 90<br />

2 ≅ 3<br />

<strong>Prove</strong>: 1 ≅ 4<br />

Statements Reasons<br />

1.) 1.)<br />

2.) 2.)<br />

Statements Reasons<br />

1.) 1.)<br />

2.) 2.)<br />

3.) 3.)<br />

4.) 4.)<br />

5.) 5.)<br />

4

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