If `(2, 1), (-1, -2), (3, 3)` are midpoints of sides `BC, CA, AB` of `DeltaABC` then the equation of `AB` is

If (2,1),(-1,-2),(3,3) are midpoints of sides BC,CA,AB of Delta ABC then the equation of AB is

If (2, 1), (-1, -2), (3, -3) are the mid points of the sides BC, CA, AB respectively of DeltaABC , then the equation of the perpendicular bisector of AB is ax+by+c=0 , then (a+b+c) is _______.

If (2, 1), (-1, -2), (3, -3) are the mid points of the sides BC, CA, AB respectively of DeltaABC , then the equation of the perpendicular bisector of AB is ax+by+c=0 , then (a+b+c) is _______.

If (1, 2), (4, 3), (6, 4) are the midpoints of the sides bar(BC), bar(CA), bar(AB) of DeltaABC , then the equation of AB is

D,E,F are midpoints of sides BC,CA,AB of DeltaABC . Find the ratio of areas of DeltaDEF and DeltaABC .

If (2,1,3), (3,2,5),(1,2,4) are the mid points of the sides BC,CA,AB, of Delta ABC respectively, then the vertex A is

D(-1,8),E(4,-2),F(-5,-3) are midpoints of sides BC,CA and AB of triangle ABC .Find equation of sides of triangleABC