The diagonals of parallelogram ABCD meet at O. Then ∠AOD is equal to .
In a parallelogram ABCD, the diagonals bisect each other at O. If ∠ABC=30∘,∠BDC=10∘and∠CAB=70∘.
Find: ∠DAB,∠ADC,∠BCD,∠AOD,∠DOC,∠BOC,∠AOB,∠ACD,∠CAB,∠ADB,∠ACB,∠DBC and ∠DBA.
If ABCD is a parallelogram, then the angle bisectors of ∠A and ∠D meet at ‘O’. The measure of ∠AOD is 45∘
Diagonals AC and BD of a trapezium ABCD with AB ∥ DC intersect each other at O.then, ar (△AOD) = ___.