ΔABC is an equilateral traingle. Points F,D and E are midpoints of side AB, side BC, side AC respectively. If FD =4.5 cm , DE =2.5 cm and FE =5.5 cm . Find the length of sides AC , AB and BC respectively.
1)11cm, 5 cm , 9 cm
2)5 cm , 9 cm,11 cm
3)4.5 cm , 2.5 cm, 5.5 cm
4)9 cm ,5 cm , 11 cm
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4) 9,5,11 is the correct answer
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