Math, asked by deepak288, 1 year ago

How can prove that diagonal are not equal of a parallelogram.

Answers

Answered by ashish196
1
the diagonal of parallelogram are not equal because when the only opposite sides of parallelogram are equal
Answered by zakir7581p0visq
1
Given - We have a parallelogram ABCD
To prove -We need to prove that diagonals of a parallelogram bisect each other 
Proof - We join A & C i.e. we draw diagonal AC. We join B & D i.e. we draw diagonal BD . Say AC and BD intersect point at o
In Δ AOD & ΔBOC
             ∠BOC=∠AOD ( Vertically opposite angles are equal )
              ∠BCO=∠OAD ( Alternate interior angles are equal )
                AD = BC        ( opposite sides of ║gm are equal)
            ∴ ΔAOD ≅ ΔBOC by A.A.S.
              By C.P.C.T. -  OB=OD & OC=OA
              Hence proved






 

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