Uses of Distance Formula. Ratio Formula

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