Lines CD and CE are tangent to circle a. If m∠DAE = 130°, what is the measure of ∠DCE? A. 230 B. 130 C. 100 D. 50

50

Step-by-step explanation:

CEAD makes a quadrilateral

D and D are 90 degrees since it is tangent

C + E + A + D = 360

C + 90 + 130+ 90 = 360

C +310 = 360

Subtract 310 from each side

C = 50

D. 50

Step-by-step explanation:

C + E + A + D = 360

C + 90 + 130+ 90 = 360

C  = 360 - 90 - 90 - 130

C = 50

Hope this helps!

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !