Question

kindly solve this:-​

Answer 1

BA || ED and BC is a transversal,

.: angle EGB = angle ABC (alternate angles)

BC || EF and DE is a transversal,

.: angle DEF + angle EGB = 180°(c.o. interior angle)

=> angle DEF + angle ABC = 180°(angle EGB = angle ABC)

OR angle ABC and DEF are supplementary.