A point A (7,2) is rotated counterclockwise about the origin by 90° and it's image is then translated down by 2 units. If the final point is labeled as A then which of the following would be the length of AA.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
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A point A (7,2) is rotated counterclockwise about the origin by 90° and it's image is then translated down by 2 units. If the final point is labeled as A then which of the following would be the length of AA.
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         A  7 , 2       A is rotated counterclockwise about  origin by 90°

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