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Mathematics 9 Online
OpenStudy (anonymous):

In the diagram of ∆ABC, D is the midpoint of AB, E is the midpoint of BC, and F is the midpoint of AC. If AB = 20, BC = 12, and AC = 16, what is the perimeter of trapezoid ABEF?

OpenStudy (anonymous):

help

OpenStudy (anonymous):

need help on allll

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