ABCD is a trapezium in which AB is parallel to DC. If the diagonals intersect at C, then which one of the following is correct?

\[\frac{AD}{BC}=\frac{AB}{DC}\]

\[\frac{OA}{OC}=\frac{OB}{OD}\]

\[\frac{OB}{OD}=\frac{BC}{CD}\]

\[\frac{OA}{OC}=\frac{DA}{DC}\]

ABCD is a trapezium in which AB is parallel to DC. If the diagonals in

1.	ABCD is a trapezium in which AB is parallel to DC. If the diagonals intersect at C, then which one of the following is correct?
A.	\[\frac{OA}{OC}=\frac{OB}{OD}\]
B.	\[\frac{AD}{BC}=\frac{AB}{DC}\]
C.	\[\frac{OB}{OD}=\frac{BC}{CD}\]
D.	\[\frac{OA}{OC}=\frac{DA}{DC}\]
Answer» B. \[\frac{AD}{BC}=\frac{AB}{DC}\]

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ABCD is a trapezium in which AB is parallel to DC. If the diagonals intersect at C, then which one of the following is correct?

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