Question

in the given figure find the ratio angle ABD : angle ACD​

Answer 1

Answer:

answer is 1:1

Step-by-step explanation:

inthe figure AB=AC

so angleB=angleC

and in the figure angleDBC=angleDCB

so the angleABD=angleACD

so ratio is 1:1

Answer 2

Answer:

1:1

Step-by-step explanation:

In △ABC , AB=AC

⇒∠ABC=∠ACB  (Angles opposite to equal sides of triangle are equal)

Let ∠ABC=∠ACB=x

In △BDC , AB=AC

⇒∠DBC=∠DCB  (Angles opposite to equal sides of triangle are equal)

Let ∠DBC=∠DCB=y

Now ∠ABD=∠ABC−∠DBC

⇒∠ABD=x−y.......(i)

Also ∠ACD=∠ACB−∠DCB

⇒∠ACD=x−y........(ii)

Dividing (i) by (ii)

⇒∠ABD:∠ACD=1:1