Question

plz answer this question with explaination!!!!!!!!!!!!!!!!!!!!urgent!!!!!!!!!!!!!!

Answer 1

it is equal to 1:1

since ABC = ACB

and DBC = DCB

therefore

ABC - DBC = ACB - DCB

ABD = ACD

hence proved

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Answer 2

Answer:

Option(D)

Step-by-step explanation:

Given,

(i) AB = AC

⇒ ∠ABC = ∠ACB.

(ii) DB = DC

⇒ ∠DBC = ∠DCB

On solving (i) & (ii), we get

⇒ ∠ABC - ∠DBC = ∠ACB - ∠DCB

⇒ ∠ABD = ∠ACD

⇒ ∠ABD/∠ACD = 1/1

⇒ ∠ABD : ∠ACD = 1:1

Hope it helps!