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Answer:
In triange OAD and OBC we have
<OAD=<OBC= 90 degree
<AOD=<BOC= V.O.A
<OCB=<ODA = corresponding angles
from AAA criteria we can prove that triangle OAD is congruent to triangle OBC
=> CD bisects AC by CPCT
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Step-by-step explanation:
in triangle BOC and AOD ,,
angle OBC=OAD
( EACH OF 90 ANGLE)
BC=DA ( GIVEN)
ANGLE BOC=AOD (VERTICALLY OPPOSITE ANGLE)
TRIANGLE BOC = AOD ( ASA TEST)
BO=OA(BY C.S.C.T). EQ .1
OC=OD ( BY C.S.C.T)EQ2
so , AB =CD (BY 1AND 2)
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