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In the picture triangle A'B'C' is an image of triangle ABC after a rotation. The center of rotation is D.
What is the length of side B'C'?

In the picture triangle ABC is an image of triangle ABC after a rotation The center of rotation is D What is the length of side BC class=

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201633

Answer: The leangth of B'C' is 4 hence the 4 between the B and C.  All they did to the triangle is add angels and rotate it.

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