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Prove that AO=OC (Hint: the answer has nothing to do with rotation).

Prove that AO=OC (Hint: the answer has nothing to do with rotation).-example-1
User Nican
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9 votes
We have to prove diagonals of parallelogram ABCD bisects each other.
i.e, OA=OC & OB=OD
Now In ΔAOD and ΔBOC
AD=BC [opposite sides are equal]
∠ADO=∠CBO [alternate interior angle]
Similarly ∠DAO=∠BCO
∴ΔAOD≅ΔBOC by (ASA rule)
So, OA=OC & OB=OB
User GEMI
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