Question

B.
Answer the following questions.
(a) If AB || DE, find angle ACD.
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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