Question

answer this question fast. I will mark the as brainly answer

Answer 1

Using the concept of slope we can prove it is a right angled triangle

slope of AB=(5-2)/(4-1)=3/3=1
slope of BC=(3-5)/(6-4)=-2/2=-1

Since the product of the slopes is = - 1,

AB is perpendicular to BC

So ABC is a right angled triangle....