Use the proof diagram to complete the question. State the missing reason in this proof for the letter given. Can anyone help me out? Really struggling. Thanks.

See below.

Step-by-step explanation:

We know that and we want to prove that .

  Statements                                         Reasons

1)                                               Given

2)                                              A) Vertical Angles Are Congruent

3)                                             B) Substitution Property

4)                                                   C) Alternate Interior Angles Converse*

*We know that alternate interior angles are congruent when two parallel lines are cut by a transversal. So, the converse states that if the two alternate interior angles are congruent, the the two lines must be parallel.

Further Notes:

I'm not sure why they did more than necessary. Since , they are corresponding angles. Then by the Corresponding Angles Converse, p must be parallel to r.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.