Respuesta :

snog

Answer:

31°

Step-by-step explanation:

Rotations about the origin are rigid transformations, meaning that they preserve segment length and angle measure. Therefore, since ∠BCD and ∠B'C'D' are corresponding angles, we know that m∠BCD ≅ m∠B'C'D' = 31°.

Answer:

Sample answer for Edmentum and Plato

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