Question

Determinar as distâncias dos pontos AB BC CA, dados A (1,5) B (-2,1) e C ( 4,1) .

Answer 1

D²AB=(xa-xb)²+ya-yb)²
d²ab=(1+2)²+(5-1)²
d²ab=9+16
d²ab=25
dAB=5

d²BC=-2+4)²+(1-1)²
D²BC=4+0
DBC=2

D AC=1-4)²+(5-1)²
D²AC=9+16
DAC=5