Bisctors of two adjacent angles of quadrilateral ABCD intersect at a point O. Prove that
2angleAOB=angle C+angle D.
Kindly, follow the link given below to find the answer to your query.
Bisctors of two adjacent angles of quadrilateral ABCD intersect at a point O. Prove that
2angleAOB=angle C+angle D.
Kindly, follow the link given below to find the answer to your query.