5. In given figure, BA || ED and BC || EF. Show that ∠ABC = ∠DEF. [Hint: Produce DE to intersect BC at P (say)]. 5. In given figure BA || ED and BC || EF. Show that ∠ABC = ∠DEF. [Hint: Produce DE to intersect BC at P (say)]. June 30, 2021 Category: Chapter 6 - Lines and Angles , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related