Distance Formula CBSE NCERT solutions Chapter 7 Exercise 7.1 Question 3
3. Determine if the points (1, 5), (2, 3) and (-2, -11) are collinear.
Solution:
Let A = (1, 5), B = (2, 3) and C = (-2, -11)
Using Distance Formula to find distance AB, BC and CA.
AB + BC
CA
Therefore, the points A, B and C are not collinear.
Leave a Reply