3.2 Prove Lines are Parallel

r is parallel to s by converse of Alternate Interior Angles Thm.

u is parallel to v by Converse of Corresponding Angles Thm

s is ⊥ u by Converse of Alternate Interior Angles Thm

v ⊥ r by Converse of Alternate Exterior Angles Thm

Corresponding Angles Converse

Alt. Interior Angles Converse

Alt. Exterior Angles Converse

Not Enough Information to Prove Parallel

Vertical Angles Theorem

14

12.5

15

25

∠2 and ∠3

∠5 and ∠6

∠4 and ∠10

∠6 and ∠14

45

12

47.5

None of the above

45

5

15

None of the above

If a=b, and b=c, then a=c

if a || b, and b || c, then a || c.

All lines are parallel

$\overline{AE}$ and $\overline{CH}$

$\overline{EB}\ and\ \overline{HG}$

$\overline{EB}\ and\ \overline{HD}$

$\overline{FE}\ and\ \overline{HC}$

Linear Pair Postulate

Alternate Interior Angles Theorem

Vertical Angles Theorem

Corresponding Angles Postulate