PLEASE HELP!!

Quadrilateral ABCD is inscribed in circle O as shown below.


Which of the following would be used to find the m∠3?


A. 90°+m∠4


B. 180°−m∠1


C. 270°+m∠2


D. 360°−(m∠1+m∠2)

PLEASE HELP Quadrilateral ABCD is inscribed in circle O as shown below Which of the following would be used to find the m3 A 90m4 B 180m1 C 270m2 D 360m1m2 class=