Question

Show that the points (-2,5) , (3,-4) , (7,10) form a right angled isosceles triangle.

Answer 1

Step-by-step explanation:

1. Ab=
2. $\sqrt{ {(3 + 2) + ( - 4 - 5)}^{2} }$

$\sqrt{106}$

Ab= this☝

same find bc and Ac

you will get ac=ab+bc