14-03-2017
Mathematics

Answered

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 AD=3 and DC=12, what is the length of BD? class=

Verified Answer :

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

View image jdoe0001

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