Respostas

2014-05-27T15:38:56-03:00
Origem (0,0)

A(-3,4)

d²=(x-xo)²+(y-yo)²
d²=(0-(-3)²+(0-4)²
d²=(0+3)²+(0-4)²
d²=(3)²+(-4)²
d²=9+16
d²=25
d=√25
d=5u