Geometry. BD is tangent to circle O at C, mAEC=280, and mACE=80. Find mDCE.(The figure is not drawn to scale.)
A. 100
B. 50
C. 120
D. 60

Geometry BD is tangent to circle O at C mAEC280 and mACE80 Find mDCEThe figure is not drawn to scale A 100 B 50 C 120 D 60 class=