Question

30 points, please help, no links

Complete the proof.

Given: r | | s

Prove: angle 2, angle 8 are supplementary

Answer 1

Explanation:

1)
`r \parallel s` (given)

2)
`\angle 2` and
`\angle 4` are supplementary (angles that form a linear pair are supplementary)

3)
`\angle 4 \cong \angle 8` (corresponding angles theorem)

4)
`\angle 2` and
`\angle 8` are supplementary (substitution)