Answer:
9.21954445729
Step-by-step explanation:
A^2 + B^2 = C^2
7^2 = 6^2 = 85
The square root of 85 is...
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A tranlation and a rotaion.
In order to map the shapes, you have to translate point A onto point D and then rotate until points C and F, and B and E match up.