According to the given figure, a Quadrilateral ABCD is circumscribing a circle, which of the following option is correct.
1
DC = CB, AD = AB
2
AB + CD = AD + BC
3
AB + BC + AD + CD
4
DR + DS = BQ + BP
According to the given figure, a Quadrilateral ABCD is circumscribing a circle, which of the following option is correct.