In parallelogram ABCD, diagonals AC and BD intersect each other at 'O'. If area of ∆AOB is 2 3/4 cm, them are a of parallelogram ABCD=___.
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Step-by-step explanation:
If area of ∆AOB is 2 3/4 cm, them are a of parallelogram ABCD=_11/4. ×4__.=11cm^2
2 3/4=11/4
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