D, E and F are respectively the mid points of sides AB, BC and CA of ∆ ABC Find the ratio of the ar

Описание к видео D, E and F are respectively the mid points of sides AB, BC and CA of ∆ ABC Find the ratio of the ar

D, E and F are respectively the mid-points of sides AB, BC and CA of ∆ ABC. Find the ratio of the areas of ∆ DEF and ∆ ABC

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