Question

ans it plz plz plz plz.....​

Answer 1

Oa=ob .,.given

Od= oc .,.given

<boc=<aod vertically opposite angles

BOC = aod

Answer 2

Given,

OA = OB

OD = OC

And,

Angle(COB) = Angle(AOD) [vertically opposite angles]

So both triangles, AOD and COB are congruent by SAS rule.