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If D - ((1)/(5) , (5)/(2) ) , E ( 7, 3) ...

If `D - ((1)/(5) , (5)/(2) ) , E ( 7, 3) and F ((7)/(2), (7)/(2))` are the mid-point of the sides of `Delta` ABC , find the coordinates of `Delta` ABC.

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The correct Answer is:
`y_(1) = 3 , y_(2) = 2 , y_(3) = 4 `
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