triangle ABC is isosceles having AB=AC and angle A =40 ° . Bisectors PO and QO of the exterior angles angle ABD and angle ACE formed by producting BC on Both sides meet at 'o' find the value of angle BOC .also find the value of the four angles of quadrilateral
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triangle ABC is isosceles having AB=AC and angle A =40 ° . Bisectors PO and QO of the exterior angles angle ABD and angle ACE formed by producting BC on Both sides meet at 'o' find the value of angle BOC .also find the value of the four angles of quadrilateral
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