Find the length of segment BC if segment BC is parallel to segment DE and segment DC is a medsegment of triangle ABC.

A(-3,4) E(4,3) D(1,1)
B and C do not have coordinates

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  1. A diagram will help solve these geometry problems.

    If DC is a mid-segment, i.e. D is at the mid point of AB of triangle ABC, then mAD=mDB and since DE is parallel to BC, mAE=mEC.

    By similar triangles, mBC = 2* mDE
    The length of

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  2. 20 cm

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