in general distanta dintre 2 puncte M(a;b) si N(k;p) este
MN = √((a-k)^2+(b-p)^2)
in cazu tau
MN = √((-2-4)^2+(5-4)^2)
MN=√37
NP=√((4-3)^2+(4+2)^2)
NP=√37
MP=√((-2-3)^2+(5+2)^2)
MP=√74 = √2 x √37
perimetru P
P=MN+NP+MP = √37 + √37 + √2 x √37=2√37 + √2√37
P=√2√37(√2+1) sau
P=√74 (√2+1)
