Geometry Intro to Proofs

What does this symbol mean?

• Is congruent to

• is equal to

• is not congruent to 

• is not equal to

Which lines are proven parallel if Angles 2 and 4 are used?

• s & t

• l & m

Which lines are proven parallel if Angles 6 and 10 are used?

• none

• l & m

• s & t

Which lines are proven parallel if Angles 1 and 14 are used?

• none

• s & t

• l & m

Which lines are proven parallel if Angles 1 and 15 are used?

• none

• s & t

• l & m

If it is given that p ∥ q, what are ALL correct statements that can be made?

• ∠1 ≅ ∠3 by the corresponding angles postulate

• ∠2 and ∠3 are supplementary by the linear pairs postulate

• ∠1 ≅ ∠2 by the alternate exterior angles theorem

Which lines are proven parallel if Angles 12&7 are used?

• l & m

• s & t

Angles 3 and 8 prove parallel lines, true or false?

• true

• false

Angles 1 and 5 prove lines parallel... true or false?

• true

• false

Which parallel lines are proven parallel if Angles 3 and 16 are used?

• none

• s & t

• l & m