Jawabanmu

2014-04-06T13:23:44+07:00
Bc = (9-12, 3-1) = (-3,2) jarak bc =akar (-3^2+2^2) = akar (9+4) = akar 13 ac = (9-5, 3-(-2) ) = (4,5) jarak ac = akar (4^2+5^2) = akar (16+25) = akar 41 cmiiw