4. If in the given figure, bisectors AP and BQ of the alternate interior angles are parallel, then show that l || m. 4. If in the given figure bisectors AP and BQ of the alternate interior angles are parallel then show that l || m. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related