If diagonals AC and BD of a quadrilateral ABCD intersect at O in such a way that ar(AOD)= ar(BOC), then ABCD is a:
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3
Answer:
it must be a parallelogram because by this o will be the mid point of diagonals
if this help mark me as brainliest
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2
It's a TRAPEZIUM.
Given -
a quad. ABCD ,
ar( AOD ) = ar ( BOC ).
To prove- ABCD is a trapezium
Proof -
ar(ADC)= ar ( AOD ) +ar(DOC)
similarly
ar(BDC) = ar(BOC) + ar(DOC)
ar( AOD ) = ar ( BOC )
DOC IS COMMON HERE
Therefore,ar(ADC) = ar(BDC)
These two triangles are on the same base DC and their areas are also equal.
Therefore, they lie between the same parallels AB and DC.
AB || DC
Therefore, ABCD is a parallelogram with one pair of opposite sides parallel.
Therefore, ABCD is a trapezium.
I HOPE IT HELP YOU.
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