In Fig.
, lines XY and MN intersect at O. If `anglePOY = 90^@` and `a : b = 2 : 3`, find C.

In figure, lines XY and MN intersect at O. If /_POY = 90^@ and a : b = 2 : 3 , find c.

In Fig. , lines AB and CD intersect at O. If angleAOC+angleBOE=70^@ and angleBOD = 40^@ , find angleBOE and reflex angleCOE .

In Fig. , lines AB and CD intersect at O. If angleAOC+angleBOE=70^@ and angleBOD = 40^@ , find angleBOE and reflex angleCOE .

In figure, lines AB and CD intersect at O. If /_AOC + /_BOE = 70^@ and /_BOD = 40^@ , find /_BOE and reflex /_COE .

In the given Fig , lines, PQ and RS intersect each other at point O. If anglePOR ∶ angleROQ = 5 : 7 , find the measure of all angles.

In the given Fig , lines, PQ and RS intersect each other at point O. If anglePOR : angleROQ = 5 : 7 , find the measure of all angles.

In Fig. 6.9, lines PQ and RS intersect each other at point O. If angle POR : angle ROQ = 5 : 7 , find all the angles.

In the fig. lines AC and BD intersect at O. if angleAOD: angleDOC=4:5 then find angleCOB .