Question

ae parllell to dc
Ab=Ac
find angle abd​

Answer 1

Answer:

b) 110

Step-by-step explanation:

Given:

• AE//DC and AB=AC

• ∠A (Just for ref.) = 70°

To find: ∠ABD

  ∠A=∠ACB=70° (Corresponding angles)

Since AB=AC,

   ∠ACB=∠ABC=70° (Angles opp. to equal angles are equal)

 

   ∠ABC+∠ABD=180° (Linear pair)

   70°+∠ABD=180°

   ∠ABD=180-70

    ∠ABD=110°

Hope this helps!!