meganboyd8404 meganboyd8404

23-06-2021
Mathematics

contestada

Answer the question below. Type your response in the
space provided.
Polygon ABCDE rotates 52° about the origin to create polygon
A'B'C'D'E. If mZBCD = 31°, what is mZBICIDI?
Done
Clear

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jimthompson5910 jimthompson5910

23-06-2021

Answer: 31 degrees

This is because rotations preserve angles. The angle measures won't change. That's why angle BCD is the same as angle B'C'D'. This applies to any rotation (regardless how much you rotate), any translation, any reflection, and any dilation.

Note: dilations will change the side lengths

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