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Mathematics, 21.03.2020 04:24 nikkole11

Lines CD and CE are tangent to circle a. If m∠DAE = 145°, what is the measure of ∠DCE?

Tangent CD intersects with circle A at point D, tangent CE intersects with circle A at point E, angle ECD is on the exterior of circle A, and angle DAE has a vertex on the center of circle A.

35°
70°
145°
215°

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Lines CD and CE are tangent to circle a. If m∠DAE = 145°, what is the measure of ∠DCE?

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