coordinate

Question: The mid-points of sides of a triangle are (2, 1), (–1, –3) and (4,5). Then the coordinates of its vertices are



1) $(7,\,9),\,(-3,\,-7),\,(1,\,1)$
2) $(-3,\,-7),\,(1,\,1),\,(2,\,3)$
3) $(1,\,1),\,(2,\,3),\,(-5,\,8),$
4) None of these
Solution: Explanation: No Explanation
System of co-ordinates Distance between two points Section formulae

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