The diagonals of rhombus ABCD meet at point O. If angleDAC= 30^(@), then find the value of angleOBC. ,

In the following, PQRS is a rhombus, SQ and PR are the diagonals of the rhombus intersecting at O. If angle OPQ = 35^(@) , then find the value of angle ORS + angle OQP.

The diagonals of a rectangle ABCD meet at O. If angleBOC=50^(@) then find angleODA .

The diagonals of rectangle ABCD intersect at O . If angleAOD=40^(@) , then find angleOAD

The diagonals of a rectangular ABCD intersect at O. If /_BOC=68^(@) , then find /_ODA

(i) In the adjoining figure, O is the centre of the circle. If angleOBC=35^@ , then find the value of angleBAC . (ii) In the adjoining figure, O is the centre of the circle. If angleOBC= 40^@ , then find the value of angleBAC .

The diagonals of a rectangle ABCD intersect in O. If /_BOC=68^(@), find /_ODA

The diagonals of a rectangle ABCD intersects at O.If /_BOC=70^(@). find /_ODA.

The diagonals of a rectangle ABCD meet at O.If /_BOC=44^(0), find /_OAD.

The diagonals of a rectangle ABCD meet at O.If /_BOC=44^(0), find /_OAD

ABCD is a cyclic quadrilateral whose diagonals intersect each other at point O. If angleCAB=25^(@) and angleBCD=85^(@) then find angleCBD .