tilly29
03.06.2021 •
Mathematics
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
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Ответ:
Ответ:
5 x 680 = 3400
3400 in Distributive Property is 3,000 + 400