Chapter 7

Coordinate Geometry

  • Distance Formula:- d = √(x2-x1)2 – (y2-y1)2
  • Section Formula:– (x,y) = [(m1x2 + m2x1)/(m1+ m2)] , [(m1y2 + m2y1)/(m1 + m2)]
  • Mid-point Formula:–  (x,y) = [(x1 + x2)/2 , (y1 + y2)/2]
  • Area of Triangle:– 1/2[x1(y2 – y3) + x2(y3 – y1) + x3(y1 – y2)] 
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