Question

Show that the points A(1,2), B(3,4) and C(0,-1) are the vertices of a
scalene triangle.​

Answer 1

Step-by-step explanation:

distance ab = root of (1-3)^2+(2-4)^2

= root of (-2)^2+(-2)^2

= root of (4+4)

= root 8

distance bc= root of (3-0)^2+(4-1)^2

= root of (9+9)

= root 18

distance ca = root of (0-1)^2+(1-2)^2

= root (1+1)=root 2

distance are not equal hence proved