Question

mostre que (9,0) equidista de (8,5) e (4,1)

Answer 1

D^2=(|9-8|)x(|0-5|)=5
D'^2=(|9-4|)x(|0-1|)=5

Portanto D=D', ou seja (9,0) equidista de (8,5) e (4,1) c.q.d.