Lines c and d are intersected by line p. At the intersection of lines c and p, the bottom left angle is (3 x + 45) degrees. At the intersection of lines d and p, the uppercase left angle is 81 degrees.

Given: g ∥ h and ∠2 ≅ ∠3Prove: e ∥ f Statements Reasons1.g || h1.given2.∠1 ≅ ∠22.corresponding angles theorm3.∠2 ≅ ∠33.given4.∠1 ≅ ∠34.transitive property5.e || f5.?What is the missing reason in the proof?

Two parallel lines, e and f, are crossed by two transversals.





Given: and g is a transversalProve:

Which diagram shows lines that must be parallel lines cut by a transversal?




Two parallel lines are crossed by a transversal.

Two parallel lines are crossed by a transversal.

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