Question

Which lines are parallel if m∠1+m∠2=180? Justify your answer.



A. j ∥k , by the Converse of the Same-Side Interior Angles Postulate
B. j ∥k , by the Converse of the Alternate Interior Angles Theorem
C. g∥h, by the Converse of the Alternate Interior Angles Theorem
D. g∥h, by the Converse of the Same-Side Interior Angles Postulate

Answer 1

if 1 and 2 are "supplementary" angles
then that means, m and g are parallel

http://www.mathsisfun.com/geometry/consecutive-interior-angles.html <--- scroll down, and see who is who, click the buttons to see the angles

Answer 2

thanks bruh

Answer 3

@jdoe0001 h? and c or d