Use the information given to answer the question.

Consider the figure, where parallel lines p and q are intersected by transversal r, and no angle is equal to 90∘.



Part A

Which equation is true?

Responses

m∠1=m∠5

m ∠ ∠ 1 = m ∠ ∠ 5

m∠1+m∠7=180∘

m ∠ ∠ 1 + m ∠ ∠ 7 = 180 ∘ ∘

m∠2=m∠7

m ∠ ∠ 2 = m ∠ ∠ 7

m∠2+m∠8=180∘

m ∠ ∠ 2 + m ∠ ∠ 8 = 180 ∘ ∘