if abcd is a parallelogram whose diagonals bisect at o which among the following doesn't hold
1 ao=oc
2 angle a = angle c
3 angle bac = angle acd
4 angle aod = angle boc = 90 degree
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Answer:
4- angle AOD=angle BOC= 90°(in a parallelogram diagonals do not bisect perpendicularly)
Step-by-step explanation:
1- true(diagonals bisect each other)
2-true(in a parallelogram opposite angles are equal)
3- true(alt i nterior angles)(opposite sides are parallel)
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