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Mathematics 19 Online
OpenStudy (anonymous):

meep

OpenStudy (anonymous):

DE=9.375

OpenStudy (anonymous):

how ?

OpenStudy (anonymous):

Lines AC and DF are the same lines on similar triangles, so you use them to find the scale between the triangles. Divide 15 by 8 and you get 1.875. To find length DE, multiply length AB, the same line on the similar triangle by 1.875 to scale it up to the larger triangle

OpenStudy (anonymous):

okay thanks ! (:

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