Question

Show that points (-2,5) and (3,-4) and (7,10) are vertices of right angled triangle

Answer 1

Which Class??

For which class are you asking this question?

Answer 2

Answer:

use distance formula to prove two corresponding sides are equal hence if two corresponding sides are equal then their base angles are equal which is equal to 45 degree. use angle sum property to find the third angle that will be 90 degree.

HENCE PROVED !