# Ex 7.1, 3 - Chapter 7 Class 10 Coordinate Geometry

Last updated at July 23, 2019 by Teachoo

Last updated at July 23, 2019 by Teachoo

Transcript

Ex 7.1 , 3 Determine if the points (1, 5), (2, 3) and ( 2, 11) are collinear. Let the 3 points be A, B & C Collinear points are points which fall on the same line There are three cases possible Case 1 A, B & C are collinear if AB + BC = AC Case 2 A, B & C are collinear if BA + AC = BC

Chapter 7 Class 10 Coordinate Geometry

Concept wise

- Distance Formula
- Equidistant points
- Checking points collinear or not
- Type of triangle formed
- Type of quadrilateral formed
- Section Formula- Finding coordinates
- Section Formula- Finding coordinates of a point in a quadrilateral
- Finding ratio
- Area of triangle
- Given area, finding k
- Area of quadrilateral

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.