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Mathematics, 01.07.2019 12:00 jboii11

In △abc point d is the midpoint of ab , point e is the midpoint of bc , and point f is the midpoint of be . find area of △abc, if area of dcf= 63 cm2.

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In △abc point d is the midpoint of ab , point e is the midpoint of bc , and point f is the midpoint...
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