Triangle Midsegment Theorem

DE is parallel to BC.[br][br]1) Move D so that the ratios equal 0.5.[br]2) What do you observe about DE and BC?[br][br]3) Move D so that the ratios equal 0.25.[br]4) What do you notice about DE and BC?[br][br]5) Move D so that the ratios equal 0.33.[br]6) What do you notice about DE and BC?
– Colin Reinhard, GeoGebra Materials Team

Information: Triangle Midsegment Theorem