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Q3. In a rhombus of side 10cm one of the diagonals is 12 cm long. Find the length of the second diagonal.
Q2. In the given figure, ABCD is a trapezium AB∥ DC and diagonals AC and BD intersects at O. If OA = 3x-1 and OB = 2x + 1, OC = 5x - 3 and OD = 6x - 5, find x.
Q1. The diagonals of a quadrilateral ABCD intersect each other at the point O such that AO/OC = BO/OD Show that ABCD is a trapezium.