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In the given figre, AB = AC and OB = OC....

In the given figre, AB = AC and OB = OC. Then, `angleABO:angleACO=?`

A

`1:1`

B

`2:1`

C

`1:2`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Join OA.
In `DeltaOAB and DeltaOAC`, we have
AB = AC (given ),
OB = OC (given)
and OA = OA.
`therefore" "Delta OAB ~=Delta OAC rArr angleABO=angleACO`.
`therefore" "angleABO:angleACO=1:1`.
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