D, E, F are the mid - points of the sides BC, CA and AB respectively of a ΔABC. Then the ratio of the areas of DEF and ΔABC is D, E, F.
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Q:
D, E, F are the mid - points of the sides BC, CA and AB respectively of a ΔABC. Then the ratio of the areas of DEF and ΔABC is D, E, F.
- 1$$ {1\over2}$$false
- 2$$ {1\over3}$$false
- 3$$ {1\over4}$$true
- 4$$ {1\over5}$$false
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