Question

If AB II DE , the find the value of ∠ACD

Answer 1

Answer:

As AB || DE, AE is crossing both the parallel lines.

So, ∠BAE=∠AED=40

o

In △CDE

∠AED+∠EDC+∠DCE=180

43+40+∠DCE=180

∠DCE=97

As ace is straight line

So, ∠DCE+∠ACD=180

∠ACD=180−97=83

Answer (C) 83