Lesson#7 <br />Use of Distance Formula: <br />* To check type of triangle <br />*To check type of Quadrilateral <br />*To prove properties of circle and polygons <br />*To check whether points are COLLINEAR or not <br />*Many other applications <br />------------------------------------ <br />How to find a point dividing the join of two points in a given ratio. <br />CASE-I <br />Ratio Formula <br />chapter No 4 <br />Introduction to Analytical Geometry <br />Exercise No 4.1
