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प्रश्न
In ΔABC, D, E, F are the midpoints of BC, CA and AB respectively. Find DE, if AB = 8 cm
योग
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उत्तर
D is the mid-point BC and E is the mid-point of AC.
∴ DE = `(1)/(2)"AB"` ....(Mid-point Theorem)
= `(1)/(2) xx 8`
= 4 cm.
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