Parallel Lines and Planes

Dallas City HallI.M. Pei

ParthenonAthens

Havasu FallsI.M. Pei

Lesson 3.3 Proving Lines //

64

62

118K C

ED

Which lines (if any) are parallel? State the postulate or theorem that justifies your answer.

Which lines (if any) are parallel? State the postulate or theorem that justifies your answer.

5228

5030

Z

X

O

W

I

Y

Which lines (if any) are parallel? State the postulate or theorem that justifies your answer.

L

46

44

9046

A

T S

Which lines (if any) are parallel? State the postulate or theorem that justifies your answer.

4890

44

48

G

ME

A

AIA

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

1 8m m

AIA

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

2 7

AIA

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

5 3

None

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L RAIA

5 4m m

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

5 6 3 4m m m m

None

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

180m APL m PAR

SSI

In each exercise some information is given. Use3 this information to name segments that must be parallel. If there are not segements, say so.

8765

4321

P A

L R

1 2 5 6 180m m m m

SSI

C’est fini.

Good day and good luck.