Question

sridha says points A(1,3), B(2,2) ,C(5,1) are collinear Do you agree with sridha and why?​

Answer 1

Step-by-step explanation:

If A, B and C are collinear, then -

Area of ∆ABC = 0

x1(y2-y3) + x2(y3-y1) + x3(y1-y2) = 0

1(2-1) + 2(1-3) + 5(3-2) = 0

1(1) +2(-2) + 5(2) = 0

1-4+5=0

-5+5= 0

Yes, area of triangle ABC is zero.

So. the given points are collinear.

So, Sudha is right.

Answer 2

Answer:

this is a answer the question