14-03-2017
Mathematics

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BD is the altitude of right triangle ABC. If AD=3 and DC=12, what is the length of BD?

BD is the altitude of right triangle ABC If AD3 and DC12 what is the length of BD class=

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jdoe0001 jdoe0001

14-03-2017

notice the picture below

bearing in mind that BD is making 3 similar triangles
use the proportions of the "small" and "medium" triangles

Ver imagen jdoe0001

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