Math

The image on a movie poster was shrunk to make the DVD cover art for the movie, so that the cover art is a scale image of the poster. The poster is 36 inches wide, and the DVD cover art is 6 inches wide. If the diagonal of the poster is 4.5 feet, what is the diagonal of the DVD cover art?
12 inches
9 inches
0.67 inch
7 inches

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  1. ANY LENGTH on the DVD cover is (1/6) of the SIMILAR measure on the poster.
    4.5 ft * 12 in/ft = 54 inches on the poster
    then
    54/6 = 9 inches on the DVD

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    posted by Damon
  2. posterwide/dvdwide=posterdiagonal/dvddiagonal


    36/6=4.5/dvdwide

    divdwide= 4.5*6/36

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  3. thanks Damon ฅ^•ﻌ•^ฅ

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